Biology AC Purifying Cleansing Foaming Gel
Biology AC Purifying Cleansing Foaming Gel
Product Description
Product overview
A gentle, organic-certified foaming gel cleanser that purifies oily and acne-prone skin without drying. Formulated with 99% natural ingredients including Rhealba Oat and Garcinia Mangosteen to cleanse, unclog pores, and balance the skin's microbiome while preventing blemishes.
Rhealba Oat Extract
Organic oat sap that soothes, rebalances, and moisturizes sensitive skin while preserving the microbiome.
Texture & feel
SENSORYRhealba Oat Extract
Organic oat sap that soothes, rebalances, and moisturizes sensitive skin while preserving the microbiome.
Garcinia Mangostana
Mangosteen peel extract with powerful anti-inflammatory and antibacterial properties to fight acne-causing bacteria.
Dandelion Extract
Anti-pollution protection that shields skin from environmental stressors and free radical damage.
Gentle Surfactants
Plant-derived cleansing agents from coconut that thoroughly cleanse without stripping or irritating.
Safety & compatibility
SAFEFree from retinoids, salicylic acid, hydroquinone, and chemical sunscreens. All ingredients are considered safe during pregnancy.
Contains Polyglyceryl-4 Caprate and Polyglyceryl-6 Caprylate (esters) that may potentially trigger fungal acne in highly sensitive individuals.
Clinically tested to not clog pores. Comedogenic rating of 0-1 out of 5. Safe for acne-prone skin.
Dermatologically and ophthalmologically tested. Formulated to minimize allergy risk. Doesn't sting eyes.
Contains a soft vegetable/herbal fragrance (parfum). Those with fragrance sensitivities should patch test first.
Suitable for pre-teens from 9 years old, adolescents, and adults with oily, acne-prone skin.
Ingredient breakdown
INGREDIENTSRhealba Oat Sap (Avena Sativa)Proven
A-Derma's signature organic oat extract that has been cultivated for nearly 40 years specifically for sensitive skin care. Rich in saponins, flavonoids, and polyphenols.
- Soothing: Calms irritation and reduces redness in reactive skin
- Rebalancing: Helps restore the skin's natural barrier function
- Moisturizing: Provides hydration to prevent overdrying
- Microbiome-Friendly: Preserves the skin's protective ecosystem
Garcinia Mangostana Peel ExtractProven
Extracted from the purple rind of the mangosteen fruit, rich in xanthones - powerful antioxidant compounds with multiple skin benefits.
- Antibacterial: Inhibits acne-causing Propionibacterium acnes bacteria
- Anti-inflammatory: Reduces redness and swelling from breakouts
- Sebum Regulation: Helps control excess oil production
- Anti-marks Action: Helps prevent post-acne pigmentation
Taraxacum Officinale (Dandelion) ExtractPromising
Root extract from the common dandelion plant, traditionally used for its purifying and detoxifying properties.
- Anti-Pollution: Protects skin from environmental aggressors and particulate matter
- Antioxidant: Neutralizes free radicals that cause premature aging
- Detoxifying: Helps purify and cleanse the skin
Aloe Barbadensis (Aloe Vera)Proven
Freeze-dried aloe vera powder that retains all the beneficial compounds of fresh aloe.
- Hydrating: Attracts and retains moisture in the skin
- Soothing: Calms irritated and inflamed skin
- Healing: Supports skin's natural repair process
Gentle Plant-Derived Surfactants Primary Cleansers
A trio of ultra-mild cleansing agents derived from coconut and glucose that create a rich foam without irritation.
- Disodium Coco-Glucoside Citrate: Nearly natural, readily biodegradable, very mild
- Decyl Glucoside: Vegetable origin, great foaming, biodegradable
- Sodium Cocoamphoacetate: Amphoteric (mild), popular in baby products
17 ingredients
Water (Aqua), Disodium Coco-Glucoside Citrate, Decyl Glucoside, Glycerin, Pentylene Glycol, Sodium Cocoamphoacetate, Garcinia Mangostana Peel Extract, Avena Sativa (Oat) Flower/Leaf/Stem Juice*, Taraxacum Officinale (Dandelion) Rhizome/Root Extract, Aloe Barbadensis Leaf Juice Powder*, Citric Acid, Fragrance (Parfum), Maltodextrin, Polyglyceryl-4 Caprate, Polyglyceryl-6 Caprylate, Sodium Chloride, Xanthan Gum. *Organic
Where it fits in your routine
ROUTINEUse as your first step (or second step after oil cleanser/micellar water for double cleansing). Can also be used on chest and back for body acne.
How to use
HOW TO USEWet Your Face
Splash lukewarm water onto your face to dampen the skin. Avoid hot water as it can strip natural oils.
Apply & Lather
Dispense a small amount (pea-sized) onto wet hands. Massage between palms to create a creamy foam.
Gentle Massage
Apply to face using gentle circular motions for 30-60 seconds. Focus on oily areas like T-zone. Avoid eye area.
Rinse Thoroughly
Rinse completely with lukewarm water. Pat dry gently with a clean towel - don't rub.
Who is it for?
WHOPerfect for you if:
- You have oily or combination skin prone to breakouts
- You want a gentle cleanser that won't over-dry
- You prefer natural/organic certified products
- You need a pregnancy-safe acne cleanser
- You want to address body acne (chest/back)
- You're looking for a dermatologist-recommended option
- You have sensitive skin that reacts to harsh cleansers
- You're a pre-teen/teenager with first-time acne
Consider alternatives if:
- You have confirmed fungal acne (malassezia folliculitis)
- You're extremely sensitive to any fragrance
- You need a stronger medicated cleanser with BHA/benzoyl peroxide
- You have very dry or dehydrated skin
- You want a completely fragrance-free formula
- You prefer a thicker, non-foaming cleansing balm
Skin type compatibility
SKIN TYPESPerfect match. Controls excess sebum, mattifies without stripping, and prevents shine throughout the day.
Ideal balance - cleanses oily T-zone while being gentle enough for drier cheeks.
Specifically formulated for acne. Non-comedogenic, helps unclog pores and prevent breakouts.
Very gentle formula with soothing oat. Contains fragrance, so patch test if extremely reactive.
May work for dry skin with oily spots, but primarily designed for oily types. Follow with rich moisturizer.
Results timeline
MONTH 2-3Immediate Freshness
Skin feels thoroughly cleansed, refreshed, and mattified. Pleasant sensation of cleanliness without tightness or dryness.
95% noticed clean feelingReduced Oiliness
Noticeable reduction in excess sebum and shine throughout the day. Skin starts to feel more balanced and comfortable.
80% noticed less shineFewer Breakouts
Reduction in new pimples and blemishes. Pores appear cleaner and less congested. Skin texture improves.
70% noticed fewer breakoutsClearer Complexion
Significant improvement in overall skin clarity. Fewer blackheads, reduced appearance of pores, and more even skin tone.
65% noticed clearer skinRatings by platform
2K+ REVIEWSPros & cons
BALANCEDPraised
- Extremely gentle - doesn't dry out or irritate skin
- 99% natural origin with organic certification
- Sulfate-free with mild plant-based surfactants
- Dermatologist recommended for acne-prone skin
- Can be used on face, chest, and back
- Pregnancy and breastfeeding safe
- Non-comedogenic tested
- Leaves skin matte without tightness
- Lasts a long time - small amount goes far
- French pharmacy quality and efficacy
Criticized
- Contains fragrance (herbal scent can be strong)
- Not fungal acne safe for sensitive individuals
- Results take 3-4 weeks to become visible
- Higher price point than drugstore alternatives
- Smaller bottle size may not last heavy users
- No active acne-fighting ingredients (BHA/BP)
- May not be enough for severe acne alone
Budget-friendly alternatives (dupes)
DUPESSimilar French pharmacy cleanser for oily skin with zinc and copper sulfates. Contains SLES (sulfate) unlike A-Derma. Slightly more mattifying but less natural-focused formula.
Affordable dermatologist favorite with ceramides and niacinamide. More basic formula without botanical extracts. Fragrance-free option available. Good for barrier support.
Very affordable and gentle option. Lacks the targeted acne-fighting botanicals like Garcinia. Better for general sensitive skin than specific acne treatment.
Comparison with competitors
SIDE-BY-SIDEA-Derma Biology AC
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight. Keep cap tightly closed after use.
Tube (200ml) or Pump bottle (400ml). Recyclable packaging with eco-friendly approach.
200ml bottle exceeds 100ml carry-on limit. Purchase travel size or transfer to smaller container for flights.
Frequently asked questions
FAQYes, this cleanser is considered safe during pregnancy and breastfeeding. It contains no retinoids, salicylic acid, hydroquinone, or chemical sunscreens. All ingredients are gentle and have no known risks for pregnant or nursing mothers. However, always consult your healthcare provider for personalized advice.
Use with caution. While this cleanser is generally well-tolerated, it contains Polyglyceryl-4 Caprate and Polyglyceryl-6 Caprylate, which are esters that could potentially feed malassezia yeast in highly sensitive individuals. If you have confirmed fungal acne, consider a cleanser specifically formulated without any esters or fatty acid derivatives.
Yes, this gentle cleanser is compatible with most active ingredients. It doesn't contain any actives itself (no AHAs, BHAs, or retinoids), making it an ideal cleanser to pair with your treatment products. Apply your actives after cleansing on dry skin. If using multiple actives, you may want to alternate them on different days or times of day.
This cleanser is specifically formulated for oily, combination, and acne-prone skin. It's excellent for those who want effective cleansing without harsh, drying effects. Also suitable for sensitive skin types who struggle with breakouts. Can be used by pre-teens (9+), teenagers, and adults. Less ideal for very dry skin types.
You'll notice immediately cleaner, fresher skin after the first use. Reduced oiliness typically becomes apparent within 1-2 weeks of consistent use. For visible reduction in breakouts and improved skin clarity, expect 3-4 weeks. Maximum benefits are usually seen after 2-3 months of regular morning and evening use.
Use as the first step (or second step if double cleansing with an oil cleanser/micellar water first). Apply to damp skin, massage to lather, then rinse. Follow with toner, serums, moisturizer, and sunscreen (AM). Can also be used on chest and back during shower for body acne. Use morning and evening for best results.
No, this product is non-comedogenic and has been clinically tested to not clog pores. It has a comedogenic rating of 0-1 out of 5, meaning it has minimal to no pore-clogging potential. The gentle, water-based formula is specifically designed to cleanse and unclog pores without leaving any residue that could cause breakouts.
The product has a Period After Opening (PAO) of 12 months. This means you should use it within one year of first opening. The 200ml bottle typically lasts 2-3 months with twice-daily use (face only). Store in a cool, dry place away from direct sunlight and always close the cap tightly after use.
Verdict: A-Derma Biology AC Purifying Cleansing Foaming Gel is an excellent choice for those seeking a gentle yet effective cleanser for oily and acne-prone skin. Its standout features include the 99% natural origin formula, COSMOS organic certification, and sulfate-free cleansing agents - rare finds in the acne cleanser category. The combination of Rhealba Oat and Garcinia Mangostana provides both soothing and antibacterial benefits. While it lacks active acne-fighting ingredients like salicylic acid, this makes it pregnancy-safe and gentle enough for daily use. The main drawbacks are the fragrance (which some may find strong) and the caution needed for fungal acne sufferers. Overall, it's a premium French pharmacy cleanser that delivers on its promise of purifying without irritating, making it worth the slightly higher price point.
Product Overview
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.
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
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.
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
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.
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
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.
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 |
|---|---|---|---|
| 0 |
Disodium Coco-Glucoside Citrate
Emulsifying
|
|
|
| 1 |
Decyl Glucoside
Surfactant, Emulsion Stabilising, Cleansing
|
|
|
| 2 |
Glycerin
Solvent, Perfuming, Fragrance, Humectant, Viscosity Decreasing Agent, Hair Conditioning, Skin Protecting, Denaturant, Skin Conditioning
|
Promotes Wound Healing
Hydrating
|
|
| 1 |
Pentylene Glycol
Solvent, Skin Conditioning
|
|
|
| 1 |
Sodium Cocoamphoacetate
Hair Conditioning, Sufactant, Foam Boosting, Foaming
|
|






