Turmeric Illuminating Solution
Turmeric Illuminating Solution
Product Description
A gentle leave-on exfoliating toner that combines Ayurvedic-inspired turmeric with a mild blend of 3% Glycolic Acid, 2% Mandelic Acid, and 2% PHA (Gluconolactone) to brighten, even skin tone, reduce dark spots, and smooth texture without irritation. Formulated with soothing oat kernel extract for sensitive skin comfort.
β¨ Texture & Feel
Instant Radiance Boost
Delivers visible brightening from the first use thanks to the triple-acid blend of glycolic, mandelic, and PHA working together to dissolve dead skin cells.
Dark Spot Reduction
Turmeric root extract combined with mandelic acid targets post-blemish hyperpigmentation and sun damage marks for a more even-toned complexion over time.
Gentle Enough for Sensitive Skin
Lower acid concentrations (3% glycolic, 2% mandelic, 2% PHA) paired with soothing oat kernel extract make this suitable for acid-sensitive skin types.
Sustainable & Recyclable
Glass bottle packaging that is fully recyclable. Cocokind is a women-led, mission-driven brand committed to transparent pricing and earth-friendly formulations.
π‘οΈ Safety & Compatibility
Contains glycolic acid (3%) and mandelic acid (2%), both AHAs. Low concentrations are generally considered low-risk, but always consult your doctor or dermatologist before use during pregnancy or breastfeeding.
Contains cetearyl alcohol, a fatty alcohol that may feed malassezia yeast in some individuals. Most other ingredients are fungal acne safe. Patch test recommended if you are prone to fungal acne.
Rated 1/5 on the comedogenic scale. Lightweight milky-liquid formula is unlikely to clog pores. No heavy oils or waxes in the formula.
Free from retinol, retinoids, and hydroquinone. The brightening effect comes from turmeric extract and gentle exfoliating acids instead.
91% top allergen free. No added fragrance, parabens, phthalates, sulfates, or common irritants. Contains only 18 clean ingredients.
AHAs (glycolic and mandelic acid) increase sun sensitivity. Always apply sunscreen during the day when using this product to prevent UV damage and further dark spots.
π¬ Ingredient Breakdown
π§ͺ Glycolic Acid 3% Proven
The smallest AHA molecule, glycolic acid penetrates skin effectively to exfoliate dead cells, stimulate collagen production, and improve skin texture and tone. At 3%, it provides meaningful exfoliation while minimizing irritation risk.
- Mechanism: Breaks down the bonds between dead skin cells on the surface, accelerating cell turnover.
- Research: Extensively studied for reducing fine lines, hyperpigmentation, and improving overall skin radiance.
- Concentration: 3% is considered gentle; clinical products often use 5-10% for stronger effects.
π¬ Gluconolactone (PHA) 2% Proven
A polyhydroxy acid (PHA) that exfoliates more gently than AHAs due to its larger molecular size. Simultaneously hydrates while exfoliating and helps strengthen the skin barrier.
- Mechanism: Exfoliates the skin surface while attracting moisture and stimulating hyaluronic acid production.
- Research: Studies show PHAs are well-tolerated even by sensitive and rosacea-prone skin types.
- Benefit: Antioxidant properties help neutralize free radicals and protect against environmental damage.
πΈ Mandelic Acid (AHA) 2% Proven
The gentlest AHA, derived from bitter almonds. Its larger molecular size means slower skin penetration and less irritation. Particularly effective against hyperpigmentation, acne, and post-blemish dark spots.
- Mechanism: Exfoliates while also providing antibacterial benefits, making it ideal for blemish-prone skin.
- Research: Studies show mandelic acid reduces melanin production, helping to fade dark spots and even skin tone.
- Bonus: Has anti-bacterial properties that can help reduce blemishes and prevent future breakouts.
π‘ Turmeric Root Extract Active Level Promising
An Ayurvedic powerhouse used for centuries in South Asian cultures. Rich in curcumin, a potent antioxidant with anti-inflammatory, antimicrobial, and skin-brightening properties. Extracted via CO2 method so it does not stain skin.
- Source: Vaughn et al. (2016) systematic review confirmed curcumin's anti-inflammatory and antioxidant benefits for skin health.
- Benefit: May help regulate sebum production and soothe inflamed, acne-prone skin.
- Brightening: Works synergistically with the AHA/PHA blend to illuminate and even skin tone.
πΎ Oat Kernel Extract Soothing Agent Proven
Avena sativa (oat) kernel extract is one of the most well-studied soothing ingredients in skincare. It calms irritation and helps reinforce the skin barrier, making this exfoliant much more comfortable to use.
- Mechanism: Contains avenanthramides and beta-glucans that reduce redness and inflammation.
- Role: Balances the exfoliating acids by calming and protecting the skin barrier.
18 ingredients
Water, Glycolic Acid, Gluconolactone, Mandelic Acid, Potassium Hydroxide, Cetearyl Alcohol, Lysolecithin, Sclerotium Gum, Coco-Glucoside, Sodium Benzoate, Curcuma Longa (Turmeric) Root Extract, Sodium Gluconate, Pullulan, Xanthan Gum, Glycerin, Silica, Calcium Gluconate, Avena Sativa (Oat) Kernel Extract.
π Where It Fits in Your Routine
Use 3-5 times per week, AM or PM. Apply after cleansing and before serums. Can also be used on body areas like armpits, chest, and legs for gentle exfoliation and tone evening.
π How to Use
Cleanse Your Skin
Start with clean, dry skin. Use your favorite gentle cleanser and pat face dry. Shake the bottle lightly before use.
Dispense 4-5 Drops
Pour 4-5 drops of the solution into the palm of your hand. Press palms together to distribute the product evenly.
Apply & Pat In
Gently press and pat the product over your face and neck. Avoid the eye area. Pat until fully absorbed β do not rinse off.
Follow With Serum & Moisturizer
Once absorbed, layer your serum (e.g., Cocokind Ceramide Barrier Serum), moisturizer, and sunscreen in the morning. Start with 3x per week and increase as tolerated.
π€ Who Is It For?
β Perfect for you if:
- You have dark spots, hyperpigmentation, or uneven skin tone
- You want a gentle exfoliant that does not over-strip or sensitize
- You are new to chemical exfoliation and want to start with low concentrations
- You have oily, combination, or blemish-prone skin
- You prefer clean, fragrance-free, sustainable skincare
- You want a product that also works on body areas (armpits, chest, legs)
β Consider alternatives if:
- You need aggressive exfoliation for deep wrinkles or severe acne scarring
- You want a high-percentage acid toner (7%+ glycolic acid)
- You are looking for a BHA (salicylic acid) for deep pore cleansing
- You are currently pregnant or breastfeeding (consult your doctor first)
- You have a confirmed sensitivity to cetearyl alcohol or fungal acne triggers
π― Skin Type Compatibility
Lightweight milky-liquid absorbs quickly without adding oil or shine. AHA/PHA blend helps control excess sebum and unclog pores.
Gluconolactone (PHA) and glycerin provide hydration while exfoliating. Follow with a rich moisturizer. Start at 2-3 times per week.
Balances well across oily T-zone and drier cheeks. The gentle acid levels work without over-drying or over-stimulating any zone.
Designed to be gentle with low acid percentages and soothing oat extract. Patch test first. Start 2x per week and build up tolerance.
Mandelic acid has antibacterial properties. Turmeric soothes inflammation. Low comedogenic rating (1/5) means minimal breakout risk.
π Results Timeline
Instant Radiance & Smoother Texture
Skin feels softer and looks more radiant after the first few applications. Mild tingling may occur on initial use as acids get to work on surface dead cells.
85% noticed brighter skinImproved Clarity & Reduced Roughness
Consistent use reveals clearer, more even-textured skin. Post-blemish marks begin to lighten as dead cell buildup decreases and cell turnover accelerates.
70% noticed improved textureVisible Dark Spot Fading
Hyperpigmentation and dark spots begin to noticeably fade. Skin tone appears more even and uniform. Fine lines may appear diminished due to improved cell turnover.
60% noticed faded dark spotsLong-Term Tone & Collagen Benefits
With continued use, glycolic acid supports collagen production for firmer-looking skin. Dark spots continue to fade and overall complexion appears brighter and healthier.
75% reported overall improvementβ Ratings by Platform
βοΈ Pros & Cons
β Praised
- Gentle enough for sensitive skin and acid beginners
- Delivers visible brightening and radiance from first use
- Clean, minimal 18-ingredient formula with no fragrance
- Multi-acid blend (AHA + PHA) for comprehensive exfoliation
- Turmeric soothes while other acids exfoliate β no irritation for most users
- Versatile: works on face, neck, and body areas
- Sustainable glass bottle packaging; cruelty-free and vegan
- Affordable price point compared to competitors
β Criticized
- Too gentle for those wanting aggressive acid exfoliation
- Dark spot fading requires weeks of consistent use
- Bottle cap can leak if not sealed properly
- Mild stinging or tingling on very sensitive or compromised skin
- 4 oz runs out fast when used on face and body
- Milky texture may feel slightly sticky before absorbing
π° Budget-Friendly Alternatives (Dupes)
Much higher glycolic acid concentration (7% vs 3%) and larger size (240ml). Stronger exfoliation but lacks turmeric, mandelic acid, and PHA. More likely to irritate sensitive skin. No soothing oat extract.
PHA-focused toner for gentle exfoliation. Lacks the multi-acid blend (no glycolic or mandelic acid) and no turmeric brightening. Better tolerated by very sensitive skin but less effective for dark spots.
Significantly higher mandelic acid concentration (12% vs 2%). No glycolic acid, PHA, or turmeric. More potent for stubborn dark spots but greater irritation risk. Not as gentle for beginners.
π Comparison with Competitors
Cocokind Turmeric Illuminating Solution
$24.00The Ordinary Glycolic Acid 7% Toning Solution
$8.90Paula's Choice Skin Perfecting 2% BHA Liquid
$35.00Ole Henriksen Glow2OH Dark Spot Toner
$32.00π¦ Storage & Shelf Life
12 months after opening
Store in a cool, dry place at room temperature. Can be refrigerated for a soothing cooling application. Does not require cold storage.
Recyclable glass bottle with plastic cap. Peel off label, recycle bottle, discard cap.
At 118 ml (4 fl oz), slightly exceeds TSA's 100 ml / 3.4 oz carry-on limit. Decant into a smaller container for air travel or pack in checked luggage.
β Frequently Asked Questions
Caution is advised. This product contains glycolic acid (3%), mandelic acid (2%), and gluconolactone (2%), which are AHAs/PHAs. While the concentrations are low, many dermatologists recommend avoiding AHAs during pregnancy as a precaution. Cocokind recommends showing the ingredient list to your doctor or healthcare provider to confirm safety for your specific situation. There are no retinoids, hydroquinone, or salicylic acid in this formula.
Use with caution. Most ingredients in this formula are fungal acne safe, but it contains cetearyl alcohol, a fatty alcohol derived from plant oils. There is debate on whether cetearyl alcohol can feed malassezia yeast. If you are prone to fungal acne, consider patch testing on a small area for 1-2 weeks before committing to full-face use. The active acids and other ingredients are generally FA-safe.
Yes, but with caution. Since this product already contains AHAs and PHA, layering additional strong actives (retinol, high-dose vitamin C, other AHA/BHA products) can increase irritation risk. Cocokind recommends alternating days β for example, use the Turmeric Illuminating Solution on Monday and retinol on Wednesday. You can also split them between AM and PM routines. Always patch test and start slowly when combining active ingredients.
This product is formulated for all skin types, with particularly excellent results for oily, combination, and acne-prone skin. It was specifically designed to be gentle enough for sensitive skin types that cannot tolerate higher-percentage acid toners. Dry skin types can use it too but should follow with a rich moisturizer. The low acid concentrations (3% glycolic, 2% mandelic, 2% PHA) combined with soothing oat extract make it ideal for acid beginners.
Most users notice an instant radiance boost and smoother skin texture within the first week. For dark spot fading and improved skin tone, expect to see noticeable results after 4-8 weeks of consistent use (3-5 times per week). Deeper hyperpigmentation may take 8-12 weeks or longer. Remember that no topical skincare product eliminates dark spots instantly β consistent use is key.
Apply immediately after cleansing, before serums and moisturizer. The recommended routine order is: (1) Cleanser, (2) Turmeric Illuminating Solution, (3) Serum, (4) Moisturizer, (5) Sunscreen (AM only). Use 3-5 times per week. It can be used in the morning or evening. Pour 4-5 drops into your palms, press palms together, and pat over face and neck.
This product has a low comedogenic rating of 1 out of 5, meaning it is very unlikely to clog pores. The formula is lightweight with no heavy oils, waxes, or comedogenic ingredients. The AHA and PHA acids actively help unclog pores by dissolving dead skin cell buildup. It is well-suited for acne-prone and congestion-prone skin.
The product has a Period After Opening (PAO) of 12 months. Check the bottom of the product box for the open jar symbol with "12M" printed on it. Store at room temperature in a cool, dry place. You can optionally refrigerate it for a cooling application experience. The glass bottle helps preserve the formula's integrity.
Verdict: The Cocokind Turmeric Illuminating Solution is an excellent entry-level exfoliating toner for anyone seeking brighter, more even-toned skin without the harshness of high-percentage acids. Its thoughtful combination of 3% glycolic acid, 2% mandelic acid, 2% PHA, and Ayurvedic turmeric extract delivers real results β from instant radiance to gradual dark spot fading β while keeping irritation at bay with soothing oat kernel extract. At $24 for 118 ml, it offers solid value in the clean beauty space with only 18 carefully chosen ingredients. It is not the strongest exfoliant on the market, so those with severe hyperpigmentation or scarring may need a more potent option. But for everyday brightening, gentle exfoliation, and a clean, sustainable formula, this is one of the best in its class.
Product Overview
What are Quick Product Notes?
Quick product notes are a great way to check if a product is free from commonly avoided ingredients by skincare enthusiasts. These preferences come about for different reasons depending on the ingredient such as personal experiences, sensitivities, health preferences & etc.
Pro Tip Alert!
Just because a product is not free from a common preference does not mean it's a bad product! You can make a personal decision whether or not you want to use a product that contains these ingredients or not - click the labels of the preference to read more about them.
Quick Product Notes
Paraben-Free
Paraben-Free
Understanding Parabens
Parabens are a large group of preservatives which are used to prevent bacteria growing in cosmetic formulations. There has been some healthy controversy surrounding them due to a few studies finding paraben presence in breast tumours and breast tissue. However, the majority of the scientific community have deemed these findings non-conclusive due to the limitations of these studies. There's still a lot of support for avoiding parabens following the better safe than sorry route. If you do we completely support you! If you are concerned about the health safety of parabens, then feel free to avoid them by looking out for the Paraben-Free icon. If not, don't worry about it - they do have had one of the longest safety records as preservatives!
Which Ingredients are classified as Paraben?
A product will be paraben-free if it does not contain any of the following parabens:
- Sodium Isobutylparaben
- Sodium Ethylparaben
- Sodium Butylparaben
- Propylparaben
- Isopropylparaben
- Isobutylparaben
- Sodium Propylparaben
- Butylparaben
- Ethylparaben
- Sodium Methylparaben
- Methylparaben
Sulfate-Free
Sulfate-Free
Understanding Sulfates
Sulfates are a large group of ingredients which act as cleansing agents in Cosmetics. They help loosen up the dirt and grime from your skin and hair to allow for water to wash it away with ease. However some sulfates are so good at their job, they can wash off your skinβs own natural oils that keep it moisturised and protected which can lead to dryness and irritation. Most people will find no issues with sulfate, however if you find your skin doesn't like sulfates then free feel to avoid them by looking out for the sulfate-free icon on Skincarisma.
Which ingredients are classified as sulfates?
We've taken the Sulfates which are considered more harsh for our Sulfate-Free status. A product will be Sulfate-Free if it does not contain any of the following Sulfates:
- TEA-Dodecylbenzenesulfonate
- Ammonium Laureth Sulfate
- Sodium Lauryl Sulfate
- PEG-15 Cocamine
- Sodium Laureth Sulfate
- Sodium Cocoyl Sarcosinate
- Sodium C14-16 Olefin Sulfonate
- Dioctyl Sodium Sulfosuccinate
- Ammonium Xylenesulfonate
- Ammonium Lauryl Sulfate
- Sodium Xylenesulfonate
- Sodium Myreth Sulfate
- Sodium Lauryl Sulfoacetate
Alcohol-Free
Alcohol-Free
Understanding Simple Alcohols
Alcohol ingredients are widely used in cosmetics and come in different types. For the most part alcohols are not problematic at all. However one type of alcohols, simple alcohols can be quite drying to the skin because it evaporates very quickly. This can cause irritation which can also lead to other skin complications. These alcohols should never be used alone on your skin, but combined with other cosmetic ingredients, they are normally without issue. However, for some people with sensitive and easily irritable skin, avoiding products with these simple alcohols may be beneficial. If you find your skin doesn't like these simple alcohols, then free feel to avoid them by looking out for the Alcohol-Free icon.
Which Ingredients are classified as Alcohol?
A product will be alcohol-free if it does not contain any of the following alcohol ingredients:
- SD Alcohol
- Alcohol Denat
- Isopropyl Alcohol
- Alcohol
Silicone-Free
Silicone-Free
Understanding Silicones
If you've ever used a skincare, makeup or beauty product that's made your skin look and feel smoother tempoarily - it's likely contained Silicone. They are a popular class of ingredients found in cosmetics due to their smooth, soft, easy-to-spread and smooth properties that help creates an artificial layer/barrier on top of skin or hair (commonly found in conditioners).
For the same reasons they are popularly used, they are also commonly avoided. Anecdotally, many individuals have reported that Silicones cause/excerbate breakouts, irritation, cause a feeling of skin being unable to breathe, cause clumping of cosmetic products and find it difficult to wash off. As a result, those who find them problematic are avoiding them and increasingly, cosmetic companies are avoiding them as well.
If you have had bad experiences with Silicones in the past, or suspect they are problematic then look out for the tick on the Silicone-free label.
Disclaimer
The Silicone-free label only includes the most common Silicone ingredients that have indentified been reported by individuals that could potentially cause issues.
These include: Amodimethicone, Behenoxy Dimethicone, Bis-Aminopropyl Dimethicone, Cetearyl Methicone, Cetyl Dimethicone, Cyclomethicone, Cyclopentasiloxane, Dimethicone, Dimethicone Copolyol, Dimethiconol, Methicone, Phenyl Trimethicone, Phenyl Trimethicone, Stearoxy Dimethicone, Stearyl Dimethicone, Trimethylsilylamodimethicone.
Note, that this does not include all ingredients part of the Silicone class of ingredients.
EU Allergen-Free
EU Allergen-Free
Understanding the Identified Contact Allergens
The EU's Scientific Committee on Consumer Safety (SCCS) has identified and established 26 cosmetic ingredients that are likely contact allergens (potential to cause skin allergies) as demonstrated in clinical or epidemiological studies. The EU's SCCS have recommend cosmetic companies to disclose them on the labels if used and in cases where the concentration exceeds 0.001% in leave-on products and 0.01% in rinse-off products, then they must be labelled.
Look out for the tick on the EU-Allergen free label to know your cosmetic is free from any of the 26 identified cosmetic ingredients.
For more information regarding the EU's Scientific Committee on Consumer Safety, please visit their official website.
Disclaimer
The EU Allergen Free label is for the 26 ingredients identified by the EU SCCS and products will be only flagged if a suspected ingredient is on it's ingredient list. It is possible for cosmetics to contain one of the suspect ingredients without it appearing on the ingredient list due to it not reaching the concentration threshold to disclose it and cosmetic manufacturers choice to not disclose it.
Also note, the EU Allergen Free label is not personalized for your own allergies you may have and it does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
Fungal Acne (Molassezia) Safe
Fungal Acne (Molassezia) Safe
Understanding Fungal Acne (Pityrosporum Folliculitis/Malassezia Folliculitis)
Pityrosporum Folliculitis/Malassezia folliculitis or simply known as Fungal Acne is a persistent acne-like condition that commonly responds poorly to traditional acne-treating methods. Unlike most cases of Acne where bacteria is the culprit, Fungi is the culprit of Fungal Acne (Hence the name!). There are certain classes & groups of ingredients that have been shown to promote and feed the growth of the Fungal Acne, Fungi such as fatty acids, oils, esters, polysorbates and fermented ingredients.
For more information regarding Fungal Acne, please visit Simple Skincare Science (f.c) - #3 of our Recommend Skincare Resources for an amazing comprehensive guide!
Please Read: How to use the Fungal Acne (Malassezia) Label
At SkinCarisma, we've done our best to identify as many ingredients as possible but note the fungal-free label may not be 100% accurate due to the complexconditions and combination of ingredients that malezzeria can thrive on.
Additionally, products that may contain ingredients that have shown to feed Malassezia may not neccessarily exacerbate the condition due to concentration of ingredient used in the product, this information is simply not available on the products.
As a result, please note this is only an experimental label that can be best used to possible identify problematic products you have used in the past. It is in no way a perfect identifier nor a predictor in whether or not it will exacerbate or cause fungal acne. It will continue to be worked on as more information and research comes to light.
If you find any ingredients you believe should be included, please email us at snails@skincarisma.com.
Disclaimer
Due to the lack of substantial research into this area it is very likely there are other ingredients and class/groups of ingredients that could feed Fungal Acne which have not been indentified.
The Fungal-Safe label does not constitute as medical advice. For your specific case, always consult your medical professiona such as dermatologist, physician, pharmacist, or health care provider - please read our medical disclaimer for more information.
What are Notable Effects & Ingredients?
Ever used a product that promised a certain effect but provided no results? It might not have contained any notable ingredients that could have been responsible for that promised effect. It doesn't matter what the marketing or packaging Β«promisesΒ» it can do, if it doesn't contain anything that can help - then the likelihood of it helping is low.
We help you identify key notable ingredients that have been shown to help with effects such as acne-fighting, brightening, UV-protection, wound healing & anti-aging to help you achieve your skincare goals smarter. Please note that different notable ingredients have varying levels of research behind them, some are extremely well proven yet some have mixed research in their efficacy.
Pro Tip Alert!
Just because a product doesn't contain any notable ingredients doesn't mean it's bad. And a product with notable ingredients (or even many) doesn't necessarily guarantee the efficacy of the product performing these effects either. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine this.
Be smart and use this as just a starting point for you to make more informed and smarter choices and compare it with reviews to see if the product is right for you
Notable Effects & Ingredients
Anti-Aging from 3 ingredient(s):
Brightening from 3 ingredient(s):
Promotes Wound Healing from 2 ingredient(s):
Ache-fighting from 1 ingredient(s):
What are Ingredients Related to Skin Type?
Why are some products great for some people and horrible for others? Well everyone has different skin types and different reactions to the same ingredients.
We've identified a range of ingredients that are commonly regarded as potentially good or bad for those with Dry, Oily/Acne-Prone or Sensitive skin.
Pro Tip Alert!
A product that contains good or bad ingredients for your skin type doesn't always flat out make the entire product good or bad for your skin. There are other factors such as ingredient quality, concentration and formulation that will ultimately determine your skins reaction.
One of the best ways to use this section is to troubleshoot products you've had bad experiences with in the past. Check if it contains any of the marked ingredients to point out suspect ingredients to avoid in the future!
Ingredients Related to Skin Types
Dry Skin
Oily/Acne-Prone Skin
Sensitive Skin
What is the Ingredient Safety Breakdown?
Ingredient Safety Breakdown refers to the percentage % of ingredients in different risk categories as classified by EWG (Environment Working Group) if they are available. There are almost endless cosmetic ingredients and they are one of the few organisations globally that have assigned ratings to a lot of the more commonly used ingredients which is why we reference them.
Pro Tip Alert!
EWG is seen by many to be more on the alarmist side in their assignment of health ratings resulting in rating ingredients as riskier than they actually are. We recommend using this a reference point rather than a strict guide of ingredient safety and to always do further research if into ingredients that you may find suspect.
Ingredient Safety Breakdown
Product ingredient list
| EWG | CIR | Ingredient Name & Cosmetic Functions | Notes |
|---|---|---|---|
| 1 |
Water
Solvent, Skin Conditioning
|
|
|
| 4 |
Glycolic Acid
Ph Adjuster, Buffering Agent, Exfoliant, Exfoliating, Buffering
|
Brightening
Ache-fighting
Anti-Aging
Promotes Wound Healing
Dark Spots
Texture
Pores
|
|
| 1 |
Gluconolactone
Solvent, Fragrance, Humectant, Skin Conditioning
|
Anti-Aging
|
|
| 1 |
Mandelic Acid
Antimicrobial
|
Brightening
Anti-Aging
|
|
| 0 |
Potassium Hydroxide
Buffering
|
|