Glow Booster Vitamin C Serum
Glow Booster Vitamin C Serum
Product Description
Product overview
A concentrated vitamin C serum from Sweden's #1 pharmacy skincare brand. Formulated with Ascorbyl Glucoside, Hydrolyzed Hyaluronic Acid, and Papain enzyme to brighten dull skin, even out skin tone, reduce pigment spots, and deliver a fresh, long-lasting glow. Lightweight, fast-absorbing, and suitable for all skin types — even sensitive skin.
Stable Vitamin C Derivative
Ascorbyl Glucoside provides antioxidant protection and brightening without the instability issues of pure L-ascorbic acid.
Texture & feel
SENSORYStable Vitamin C Derivative
Ascorbyl Glucoside provides antioxidant protection and brightening without the instability issues of pure L-ascorbic acid.
Hydrolyzed Hyaluronic Acid
Low molecular weight HA penetrates deeper into the skin for enhanced hydration and plumping from within.
Papain Enzyme Exfoliation
A gentle papaya-derived enzyme that dissolves dead skin cells without harsh scrubbing, revealing a smoother complexion.
N-Hydroxysuccinimide
A peptide-like active that targets dark circles and pigmentation by helping break down blood-derived pigments in the skin.
Safety & compatibility
SAFENo retinoids, salicylic acid, hydroquinone, or chemical sunscreens. Ascorbyl Glucoside is a gentle, stable vitamin C derivative considered safe for use during pregnancy and breastfeeding.
Contains PEG-40 Hydrogenated Castor Oil, a polyethylene glycol ester that can feed Malassezia yeast. Avoid if you are prone to fungal acne or pityrosporum folliculitis.
The water-based formula contains no heavy oils, butters, or known pore-clogging ingredients. Very unlikely to cause breakouts on most skin types.
Mildly perfumed with a fresh, fruity scent. While well-tolerated by most, those with very reactive or fragrance-sensitive skin should patch test first.
Uses a stable vitamin C derivative (not pure L-ascorbic acid), so it does not cause the stinging, redness, or pH-related irritation common with potent vitamin C serums.
Papain is a papaya-derived enzyme. Individuals with latex allergies may also be sensitive to papain. Discontinue use if irritation occurs.
Ingredient breakdown
INGREDIENTSAscorbyl Glucoside ~2%Promising
A stable, water-soluble vitamin C derivative that converts into pure ascorbic acid once absorbed into the skin. Offers antioxidant protection, brightening, and collagen-boosting potential without the instability and irritation of L-ascorbic acid.
- Type: Stable vitamin C derivative (glucose-bonded)
- Benefits: Antioxidant, brightening, anti-hyperpigmentation, collagen support
- Research: In-vitro studies confirm skin penetration and conversion to ascorbic acid, though in-vivo data is limited
Hydrolyzed Hyaluronic Acid ~0.6–1.3%Proven
A low molecular weight form of hyaluronic acid that has been chemically broken down for deeper penetration. Attracts and binds water to boost skin hydration and plumpness.
- Type: Low MW humectant (smaller than standard HA)
- Benefits: Deep hydration, plumping, skin barrier support
- Research: Multiple clinical studies confirm superior hydration vs. high MW HA due to deeper skin penetration
Papain <1%Promising
A proteolytic enzyme extracted from papaya fruit. Gently dissolves the protein bonds holding dead skin cells together, providing mild enzymatic exfoliation without physical abrasion.
- Type: Natural proteolytic enzyme
- Benefits: Gentle exfoliation, smoother texture, improved radiance
- Research: Studies show effective enzymatic exfoliation; some evidence of anti-inflammatory properties in acne
N-Hydroxysuccinimide <1%Promising
A specialized active ingredient that targets dark circles and uneven pigmentation by helping to break down blood-derived pigments (hemoglobin degradation products) in the skin.
- Type: Peptide-related brightening active
- Benefits: Reduces dark circles, targets iron-related discoloration
- Research: Limited but promising in-vitro data; often used in eye care formulations
Glycerin ~2–3%Proven
A well-established skin-identical humectant naturally found in the skin. Attracts moisture, strengthens the skin barrier, and helps maintain the liquid crystal structure of skin lipids.
- Type: Humectant / skin-identical ingredient
- Benefits: Moisturizing, barrier repair, anti-irritation
- Research: Extensive clinical evidence; effective from as low as 3%, sometimes exceeding HA in hydration studies
22 ingredients
Aqua, 1,2-Hexanediol, Propanediol, Glycerin, Ascorbyl Glucoside, PEG-40 Hydrogenated Castor Oil, Hydrolyzed Hyaluronic Acid, Papain, Acacia Senegal Gum, Xanthan Gum, Carbomer, Algin, Tetrasodium Glutamate Diacetate, Citric Acid, Sodium Citrate, Sodium Hydroxide, Caprylyl Glycol, Ethylhexylglycerin, N-Hydroxysuccinimide, Phenoxyethanol, Potassium Sorbate, Parfum.
Where it fits in your routine
ROUTINEApply morning and evening on cleansed skin, before your day cream or night cream. Always follow with sunscreen in the morning — vitamin C increases photosensitivity.
How to use
HOW TO USECleanse Your Face
Start with a gentle cleanser to remove makeup, dirt, and excess oil. Pat skin dry with a clean towel.
Dispense One Pump
One pump is enough for the entire face. The lightweight gel formula spreads easily and evenly.
Apply to Face & Neck
Gently press and smooth the serum across your face and neck using upward motions. Avoid the eye area.
Follow with Moisturizer
Wait a few seconds for the serum to absorb (it dries fast!), then layer your day cream or night cream on top. In the morning, always finish with SPF.
Who is it for?
WHOPerfect for you if:
- You want to brighten dull, tired-looking skin
- You have uneven skin tone or mild pigmentation spots
- You are new to vitamin C and want a gentle introduction
- You prefer lightweight, fast-absorbing serums
- You are pregnant or breastfeeding and need a pregnancy-safe brightening serum
- You want a simple, no-fuss Scandinavian skincare approach
Consider alternatives if:
- You need aggressive hyperpigmentation treatment (pure L-ascorbic acid at 15–20% may work better)
- You have fungal acne (contains PEG-40 Hydrogenated Castor Oil)
- You need a fragrance-free formula (this contains Parfum)
- You want a standalone moisturizer (this is a humectant-only serum — pair it with a cream)
- You are looking for high-concentration anti-wrinkle effects
Skin type compatibility
SKIN TYPESPurely humectant, water-based formula. No oils, no silicones, no occlusive ingredients. Absorbs instantly without adding shine or heaviness.
Provides a hydrating boost with HA and glycerin, but lacks occlusive ingredients. Must be layered under a richer moisturizer to seal in hydration.
Lightweight enough for oily zones, hydrating enough for drier areas. Layers perfectly under zone-specific moisturizers.
Dermatologically tested and uses a gentle vitamin C derivative. However, it contains Parfum and Papain — patch test first if your skin is highly reactive.
Low comedogenic rating (1/5) and oil-free formula. Suitable for acne-prone skin, but not fungal acne safe due to PEG-40 Hydrogenated Castor Oil.
Results timeline
WEEK 12+Immediate Glow & Hydration
Skin looks more hydrated and fresh. The papain enzyme gives a subtle, immediate radiance boost. Texture begins to feel smoother.
80% noticed improved hydrationBrighter, More Even Complexion
Vitamin C starts to build up in the skin. Users report a more luminous, even-toned appearance. Fine surface texture improves noticeably.
65% noticed brighter skin toneVisible Pigmentation Reduction
With consistent AM and PM use, mild pigmentation spots and post-inflammatory marks begin to fade. Skin looks healthier and more unified overall.
50% noticed lighter pigment spotsCumulative Antioxidant Protection
Ongoing use strengthens the skin's antioxidant defense. Complexion appears more resilient, radiant, and protected against environmental stressors.
70% reported overall healthier-looking skinRatings by platform
280+ REVIEWSPros & cons
BALANCEDPraised
- Lightweight, fast-absorbing gel that doesn't pill or feel sticky
- Pleasant, subtle fruity scent that isn't overpowering
- Gentle enough for sensitive and rosacea-prone skin
- Pregnancy and breastfeeding safe formula
- Vegan, cruelty-free, and developed under strict EU standards
- Layers beautifully under makeup and other skincare products
- Affordable price point from Sweden's #1 pharmacy skincare brand
Criticized
- Vitamin C concentration (~2%) is relatively low — effects may be gradual
- Small 30ml bottle with no larger size option
- Not fungal acne safe (contains PEG-40 Hydrogenated Castor Oil)
- Contains Parfum — not ideal for fragrance-free purists
- Humectant-only formula — won't replace a moisturizer
- Limited international availability outside Scandinavia
Budget-friendly alternatives (dupes)
DUPES
Uses the same vitamin C derivative (Ascorbyl Glucoside) at a much higher 12% concentration. Simpler formula without papain or N-Hydroxysuccinimide. Fragrance-free. Better for those wanting stronger brightening on a budget.
Community-favorite dupe with vitamin C and hyaluronic acid. Clean, cruelty-free formula. Different vitamin C derivative and texture, but targets the same concerns of dullness and uneven tone.
Another Scandinavian option with Ascorbyl Glucoside, plus Panthenol, Vitamin E, and Sea Buckthorn. More moisturizing formula with added soothing ingredients. Budget-friendly Swedish pharmacy alternative.
Comparison with competitors
SIDE-BY-SIDE
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight. While Ascorbyl Glucoside is more stable than pure vitamin C, keeping it cool extends efficacy.
Airless pump bottle (30 ml) — minimizes air exposure and oxidation, ensures hygienic dispensing with each use.
Yes — 30 ml is well under the 100 ml carry-on liquid limit. Compact pump bottle fits easily in a travel pouch.
Frequently asked questions
FAQYes. This serum contains Ascorbyl Glucoside, a stable and gentle vitamin C derivative that is widely considered safe during pregnancy and breastfeeding. It does not contain retinoids, salicylic acid, hydroquinone, or chemical sunscreens — the ingredients typically flagged as unsafe during pregnancy. As always, consult your healthcare provider if you have specific concerns.
No. This serum contains PEG-40 Hydrogenated Castor Oil, which is a polyethylene glycol ester that can feed Malassezia yeast. If you are prone to fungal acne or pityrosporum folliculitis, consider a fungal acne-safe alternative like The Ordinary Ascorbyl Glucoside Solution 12%.
Ascorbyl Glucoside is very stable and generally compatible with most other actives. You can layer it with retinol (use vitamin C in the AM, retinol in the PM for best results). It pairs well with niacinamide and hyaluronic acid. Avoid using it simultaneously with benzoyl peroxide, which can oxidize vitamin C. If combining with AHAs or BHAs, consider alternating days or using the exfoliant at night and this serum in the morning to minimize potential irritation.
This serum is suitable for all skin types, including sensitive skin. It is particularly excellent for oily and combination skin due to its lightweight, oil-free, water-based formula. Dry skin types will benefit from the hydration boost but should always follow with a richer moisturizer to lock in the moisture, as this serum is purely humectant with no occlusive ingredients.
Most users notice improved hydration and a subtle glow within 1–2 weeks. A brighter, more even complexion typically becomes visible around weeks 3–4. For visible reduction in pigmentation spots, consistent use for 6–8 weeks or more is recommended. Since this uses a gentler vitamin C derivative at a moderate concentration, results are gradual and cumulative rather than dramatic.
Apply after cleansing (and toner, if you use one) and before your moisturizer. Use it both morning and evening. In the morning, always follow your routine with sunscreen, as vitamin C can increase photosensitivity. The serum absorbs quickly, so you can apply your next products almost immediately.
This serum has a very low comedogenic rating of 1 out of 5. It is water-based, oil-free, and contains no heavy butters, waxes, or known pore-clogging ingredients. It is very unlikely to cause breakouts on most skin types. However, individual responses can vary — patch testing is always a good practice if you are highly acne-prone.
The recommended Period After Opening (PAO) is 12 months. The airless pump bottle helps protect the formula from air exposure and contamination. Store in a cool, dry place away from direct sunlight to maintain efficacy throughout the product's lifespan. With twice-daily use, the 30 ml bottle typically lasts 6–8 weeks.
Verdict: ACO Glow Booster Vitamin C Serum is an excellent entry-level vitamin C serum from a trusted 85-year-old Swedish pharmacy brand. Its gentle Ascorbyl Glucoside formula makes it ideal for sensitive skin, pregnant or breastfeeding users, and anyone new to vitamin C who wants gradual brightening without irritation. The lightweight, fast-absorbing texture and clean formulation (vegan, cruelty-free, no parabens) are genuinely impressive at this price point. However, the relatively low vitamin C concentration (~2%) means results will be more subtle and gradual compared to high-potency alternatives. If you're seeking dramatic pigmentation correction or strong anti-aging effects, a higher-concentration vitamin C product may serve you better. For a gentle daily brightening boost with Scandinavian simplicity — this delivers.
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 skin’s 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 «promises» 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 2 ingredient(s):
Brightening from 4 ingredient(s):
Promotes Wound Healing from 3 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
|
|
|
| 1 |
1,2-Hexanediol
Solvent, Skin Conditioning
|
Hydrating
|
|
| 1 |
Propanediol
Solvent, Viscosity Controlling, Viscosity Decreasing Agent
|
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Brightening
Promotes Wound Healing
Hydrating
|
|
| 1 |
Ascorbyl Glucoside
Antioxidant
|
Brightening
Redness
Texture
Pores
|