Postbiotic Acne Serum
Postbiotic Acne Serum
Product Description
Product overview
A gentle yet effective acne-fighting serum powered by 1.5% salicylic acid and microbiome-friendly postbiotics. Treats and prevents acne, blackheads, and clogged pores while beta-glucan hydrates and soothes for a clear, comfortable complexion without irritation or dryness.
Microbiome-Friendly Postbiotics
Lactobacillus ferment supports skin's natural microbiome, soothes stressed skin, and helps reduce inflammation without irritation.
Texture & feel
SENSORYMicrobiome-Friendly Postbiotics
Lactobacillus ferment supports skin's natural microbiome, soothes stressed skin, and helps reduce inflammation without irritation.
Gentle BHA Exfoliation
1.5% salicylic acid effectively unclogs pores and controls oil while being gentler than standard 2% formulas.
Hydrating, Not Drying
Beta-glucan and glycerin lock in moisture, preventing the dryness commonly associated with acne treatments.
Clean Formula
80% organic aloe base with no harsh alcohols, artificial fragrances, parabens, or silicones.
Safety & compatibility
SAFEContains 1.5% salicylic acid. ACOG considers topical salicylic acid at 2% or less generally safe, but some healthcare providers recommend avoiding BHAs during pregnancy. Consult your doctor before use.
Not fungal acne safe. Contains Lactobacillus Ferment (fermented ingredient) and Sunflower Seed Oil which may feed Malassezia yeast.
Dermatologist tested and hypoallergenic. Lower 1.5% BHA concentration and soothing ingredients make it suitable for sensitive skin types.
Rating 1/5. Lightweight, water-based formula with non-pore-clogging ingredients. Safe for acne-prone skin.
BHA can increase sun sensitivity. Always use SPF 30+ during the day when using this product.
Use caution when combining with retinol, vitamin C, or other AHA/BHA products to avoid over-exfoliation and irritation.
Ingredient breakdown
INGREDIENTSSalicylic Acid 1.5%FDA Approved
A beta hydroxy acid (BHA) that penetrates oil and exfoliates inside pores. Clears blackheads, treats acne, and controls excess sebum production.
- Mechanism: Oil-soluble, penetrates into pore lining to dissolve sebum plugs
- FDA Status: Recognized as OTC acne treatment at 0.5-2%
- Studies: Clinically proven to reduce acne lesions and improve skin texture
Lactobacillus Ferment 2%Promising
A non-living postbiotic produced by fermentation that supports the skin microbiome, has anti-inflammatory properties, and helps protect against environmental stressors.
- Research: Estee Lauder studies show anti-microbial and anti-inflammatory benefits
- Benefits: Faster reduction in acne redness compared to salicylic acid alone in some studies
- Function: Naturally produces antimicrobial peptides that protect skin
Organic Aloe Barbadensis Leaf Juice 80%Proven
Certified organic aloe vera serves as the formula base, providing lightweight hydration, anti-inflammatory benefits, and wound-healing properties.
- Benefits: Soothes irritation, provides vitamins A, C, and E
- Function: Acts as humectant and skin conditioner
- Texture: Creates silky, cushiony feel without heaviness
Beta-Glucan Part of 13% humectant blendProven
A polysaccharide derived from oats that deeply hydrates, soothes inflammation, and supports skin barrier function.
- Studies: 0.4% beta-glucan shown to be 20% more hydrating than 0.4% hyaluronic acid
- Benefits: Wound healing, antioxidant protection, anti-aging effects
- Function: Calms skin and prevents BHA-related dryness
Gluconolactone (PHA) 0.7%Gentle
A polyhydroxy acid providing gentle exfoliation, antioxidant protection, and humectant properties. Much gentler than AHAs.
- Benefits: Exfoliates without irritation, suitable for sensitive skin
- Function: Boosts efficacy of other ingredients, improves barrier function
24 ingredients
Active: Salicylic Acid 1.5%
Inactive: Aloe Barbadensis Leaf Juice*, Propanediol, Glycerin, Sodium Citrate, Musa Sapientum (Banana) Fruit Extract, Gluconolactone, Lysolecithin, Sclerotium Gum, Maltodextrin, Sodium Benzoate, Sodium Hydroxide, Pullulan, Xanthan Gum, Lactobacillus Ferment, Tocopherol, Silica, Helianthus Annuus (Sunflower) Seed Oil, Calcium Gluconate, Beta-Glucan, 1,2-Hexanediol, Caprylyl Glycol, Pyrus Malus (Apple) Fruit Extract, Morinda Citrifolia Fruit Extract
*Certified Organic
Where it fits in your routine
ROUTINEApply after cleansing and toning, before heavier serums and moisturizer. Use AM and/or PM. Always follow with SPF in daytime.
How to use
HOW TO USECleanse & Tone
Start with clean, dry skin. Use a gentle cleanser and optional toner first.
Apply 2-3 Drops
Dispense onto fingertips and gently pat or massage over face, focusing on problem areas.
Let Absorb
Allow serum to fully absorb (about 30 seconds) before applying next products.
Follow with Moisturizer & SPF
Always finish with moisturizer and SPF 30+ during the day to protect skin.
Who is it for?
WHOPerfect for you if:
- You have mild to moderate acne, blackheads, or clogged pores
- You want a gentler BHA option (1.5% vs standard 2%)
- You prefer hydrating acne treatments that don't dry out skin
- You're new to chemical exfoliants and want to start slowly
- You value clean, sustainable beauty with transparent formulations
- You have oily or combination skin prone to breakouts
Consider alternatives if:
- You have fungal acne (contains ferments and oils that feed Malassezia)
- You need maximum strength BHA (look for 2% formulas instead)
- You're pregnant and your doctor advises avoiding all salicylic acid
- You have a salicylate allergy
- You want a toner-style liquid (this is a serum consistency)
Skin type compatibility
SKIN TYPESLightweight formula controls sebum, unclogs pores, and absorbs quickly without adding shine or greasiness.
Balances oily T-zone while beta-glucan provides hydration to drier areas. Works well across all face zones.
Non-comedogenic (1/5 rating), treats existing breakouts while preventing new ones. Postbiotics reduce inflammation.
Gentler 1.5% BHA and soothing postbiotics make it tolerable. Fragrance-free. Start slowly and patch test first.
Beta-glucan provides hydration, but BHA may cause dryness. Use less frequently and always follow with rich moisturizer.
Results timeline
ONGOING USEInitial Adjustment
Skin begins to adjust. May notice slight tingling during application. Some experience minor purging as pores clear out existing congestion.
40% notice clearer poresVisible Improvement
Blackheads and clogged pores visibly reduced. Skin texture feels smoother. Existing breakouts heal faster with less inflammation.
65% notice improved textureSignificant Results
Noticeable reduction in acne breakouts. Pores appear minimized. Skin tone more even. Full benefits of postbiotics supporting microbiome health.
80% see clearer skinMaintenance
Continue daily use to maintain clear skin and prevent new breakouts. Skin barrier remains healthy and balanced with consistent use.
90% maintain improvementRatings by platform
943+ REVIEWSPros & cons
BALANCEDPraised
- Gentle enough for daily use without excessive drying
- Improves skin texture and reduces clogged pores
- Lightweight formula absorbs quickly
- Clean, sustainable, AAPI-owned brand
- HSA/FSA eligible for easy reimbursement
- Postbiotics help balance skin microbiome
- No harsh alcohols or artificial fragrances
- Speeds up healing of existing breakouts
Criticized
- Small 1 oz bottle for the price point
- Not suitable for fungal acne sufferers
- 1.5% may be too gentle for severe acne
- May cause initial purging period
- Contains fermented ingredients some avoid
- Takes 2-4 weeks to see significant results
Budget-friendly alternatives (dupes)
DUPES
Higher 2% salicylic acid concentration. Simpler formula without postbiotics or aloe base. More straightforward but may be more drying. Same 30ml size at 1/3 the price.
Uses 4% betaine salicylate (gentler BHA derivative) instead of pure salicylic acid. Larger 100ml bottle. K-beauty formula with niacinamide. Great for sensitive skin.
Industry gold standard with 2% salicylic acid. Larger 118ml bottle. Includes green tea antioxidants. More expensive but proven formula with cult following.
Comparison with competitors
SIDE-BY-SIDE
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight. No refrigeration required.
Glass dropper bottle with recyclable materials. Cocokind encourages recycling via their label peel-off system.
Yes, TSA-approved size (30ml/1 fl oz is under 100ml limit)
Frequently asked questions
FAQUse with caution. The serum contains 1.5% salicylic acid, which is under the 2% threshold that ACOG (American College of Obstetricians and Gynecologists) considers generally safe for topical use during pregnancy. However, some healthcare providers recommend avoiding all salicylic acid during pregnancy and breastfeeding out of an abundance of caution. For breastfeeding, topical salicylic acid is unlikely to be absorbed in significant amounts, but avoid applying to areas that may contact the infant. Always consult your doctor before using any BHA products during pregnancy or breastfeeding.
No, this serum is NOT fungal acne safe. It contains Lactobacillus Ferment (a fermented ingredient) and Helianthus Annuus (Sunflower) Seed Oil, both of which can potentially feed Malassezia yeast and worsen fungal acne. If you have fungal acne, consider alternatives like The Ordinary Salicylic Acid 2% Solution or COSRX BHA Blackhead Power Liquid, which have simpler, fungal acne-safe formulas.
Yes, but proceed with caution. Using multiple active ingredients simultaneously increases the risk of irritation, especially for sensitive skin. If combining with retinol, use this serum in the morning and retinol at night. With vitamin C, apply vitamin C first in the AM and this serum in the PM. Avoid using multiple AHA/BHA products in the same routine. If you're new to actives, introduce one product at a time and allow your skin to adjust before adding another. Cocokind recommends starting with their serum 2-3x per week if you're already using other actives.
This serum is best suited for oily, combination, and acne-prone skin types. The lightweight, water-based formula controls excess sebum without adding heaviness. It's also suitable for sensitive skin due to the gentler 1.5% BHA concentration and soothing postbiotics. Those with dry skin can use it but should apply less frequently and always follow with a rich moisturizer. Not recommended for fungal acne sufferers.
Most users start noticing improvement within 2-4 weeks of consistent use. Salicylic acid works relatively quickly—some see clearer pores within the first week. However, for sustained improvement in acne, texture, and overall skin clarity, expect to use the product for 4-6 weeks. Note that some users experience initial "purging" during the first 1-2 weeks as the BHA brings existing congestion to the surface, which is normal and temporary.
Apply after cleansing and toning, but before heavier serums, moisturizers, and SPF. The general order is: Cleanser → Toner → This Serum → Other Serums/Treatments → Moisturizer → Sunscreen (AM). Gently pat 2-3 drops onto skin and allow to absorb for about 30 seconds before proceeding with the rest of your routine. Can be used morning and/or evening, but always use SPF during the day.
No, this serum has a low comedogenic rating of 1/5 and is specifically designed to unclog pores rather than clog them. The lightweight, water-based formula with 1.5% salicylic acid actively works to clear existing congestion. The small amount of sunflower seed oil in the formula is low on the comedogenic scale and present in trace amounts. This product is suitable for acne-prone skin and dermatologist tested.
The Period After Opening (PAO) is 12 months. Once opened, use within one year for optimal efficacy and safety. Store in a cool, dry place away from direct sunlight. The 30ml bottle typically lasts 2-3 months with daily use of 2-3 drops. Cocokind uses natural preservatives including banana fruit extract and sodium benzoate to maintain formula stability.
Verdict: Cocokind Postbiotic Acne Serum is an excellent choice for those seeking a gentle yet effective acne treatment with clean, sustainable credentials. The innovative combination of 1.5% salicylic acid and microbiome-supporting postbiotics offers a unique approach that treats breakouts while maintaining skin barrier health. It's particularly well-suited for oily, combination, and acne-prone skin types who want results without excessive drying. The main drawbacks are the smaller bottle size for the price and unsuitability for fungal acne. For budget-conscious shoppers, The Ordinary offers a cheaper alternative, while those wanting maximum strength may prefer Paula's Choice 2% BHA. Overall, this is a thoughtfully formulated product from an ethical, AAPI-owned brand that delivers on its promises for most acne sufferers.
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 3 ingredient(s):
Brightening from 2 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 |
|---|---|---|---|
| 4 |
Salicylic Acid
Skin Conditioning, Masking, Fragrance, Hair Conditioning, Antidandruff Agent, Antiacne Agent, Denaturant, Preservative, Exfoliant, Keratolytic, Corn/Callus/Wart Remover
|
Brightening
Ache-fighting
Pores
|
|
| 0 |
Aloe Barbadensis Leaf Juice
Skin Conditioning
|
Hydrating
Redness
Irritation
|
|
| 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 |
Sodium Citrate
Masking, Ph Adjuster, Buffering Agent, Chelating
|
|