10% Vitamin C Brightening Serum
10% Vitamin C Brightening Serum
Product Description
Product overview
A sensitive-skin-friendly 10% Vitamin C serum from First Aid Beauty, powered by stabilized 3-O-Ethyl Ascorbic Acid. It brightens, evens tone, and visibly firms — without the stinging, clogged pores, or "hot dog" smell typical of traditional vitamin C. Squalane and Vitamin E add hydration and antioxidant protection in a lightweight, fragrance-free fluid.
10% Stable Vitamin C
Uses 3-O-Ethyl Ascorbic Acid, a stable vitamin C derivative that converts to active vitamin C in the skin without oxidizing quickly or turning orange.
Texture & feel
SENSORY10% Stable Vitamin C
Uses 3-O-Ethyl Ascorbic Acid, a stable vitamin C derivative that converts to active vitamin C in the skin without oxidizing quickly or turning orange.
Soothing Botanicals
Colloidal oatmeal, feverfew, green tea, and licorice root extract calm the skin while supporting a brighter, more even tone.
Squalane Hydration
Lightweight squalane locks in moisture and softens skin without a heavy, greasy, or pore-clogging feel.
Gentle by Design
No added fragrance, essential oils, or harsh alcohols. Formulated and dermatologist-tested for reactive, sensitive skin.
Safety & compatibility
SAFEGenerally considered safe — contains no retinoids, hydroquinone, salicylic acid, or chemical sunscreens. Always confirm with your doctor.
Not fungal-acne safe. Contains polyglyceryl esters (Polyglyceryl-6 Polyricinoleate, Polyglyceryl-10 Dioleate) and squalane that may feed malassezia.
Designed for morning use under sunscreen. Vitamin C and SPF together boost daytime antioxidant and free-radical protection.
Plays well with niacinamide and hyaluronic acid. Introduce alongside retinol or AHA/BHA gradually to avoid over-exfoliation.
In the brand's perception study, 98% said it did not irritate their skin. The gentle ethyl ascorbic acid form is well tolerated.
Brand-tested as non-comedogenic and lightweight (rating ~1/5). Won't leave skin feeling sticky, greasy, or clogged.
Ingredient breakdown
INGREDIENTS3-O-Ethyl Ascorbic Acid 10%Proven
A stable, ethylated form of vitamin C that resists oxidation and is gentler than pure L-ascorbic acid. Once absorbed, it converts to active vitamin C in the deeper skin layers, where it brightens, fades dark spots, and supports collagen.
- Function: Interferes with melanin production to reduce hyperpigmentation and uneven tone.
- Stability: Optimal pH range of 4–5.5, making it more shelf-stable than ascorbic acid.
- Tolerance: Slow skin conversion makes it more tolerable for reactive skin.
Squalane EmollientProven
A lightweight, non-irritating emollient that mimics the skin's own oils to lock in moisture. It hydrates, softens, and offers antioxidant support, and is suitable even at high concentrations on sensitive skin.
- Source: Research shows squalane is non-irritating even at 100% concentration.
- Benefit: Boosts hydration and helps reinforce the skin barrier.
Tocopheryl Acetate (Vitamin E) AntioxidantProven
A stable form of vitamin E that protects skin from free radicals which break down collagen. It works synergistically with vitamin C to enhance antioxidant defense.
- Synergy: Studies found vitamin E combined with vitamin C reduced the number of sunburned cells.
- Benefit: Helps soften skin and defend against environmental damage.
Licorice Root Extract BrighteningPromising
Glycyrrhiza Glabra Root Extract is a botanical brightener. Its component glabridin offers potent antioxidant and soothing properties, while liquiritin helps inhibit tyrosinase to support a more even tone.
- Pigment support: May help lighten dark spots by limiting melanin formation.
- Soothing: Glycyrrhizin offers anti-inflammatory and antimicrobial benefits.
Green Tea Leaf Extract AntioxidantPromising
Camellia Sinensis Leaf Extract is rich in polyphenols that neutralize free radicals and calm the skin. It adds a layer of antioxidant and anti-inflammatory support to the formula.
- Antioxidant: Polyphenols help defend skin cells against environmental stress.
- Soothing: L-theanine and caffeine help calm visible redness and irritation.
Colloidal Oatmeal SoothingProven
A skin-soothing ingredient well known for comforting sensitive and reactive skin. It supports the formula's gentle, calming profile alongside the brightening actives.
- Comfort: Helps soothe and support skin prone to sensitivity.
19 ingredients
Aqua (Water), 3-O-Ethyl Ascorbic Acid, Squalane, Sodium Citrate, Tocopheryl Acetate, Colloidal Oatmeal, Chrysanthemum Parthenium (Feverfew) Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra (Licorice) Root Extract, Glycerin, Polyglyceryl-6 Polyricinoleate, Xanthan Gum, Polyglyceryl-10 Dioleate, Phenoxyethanol, Citric Acid, Sodium Benzoate, Potassium Sorbate, Sodium Hydroxide, Tetrasodium EDTA.
Where it fits in your routine
ROUTINEUse in the morning after cleansing (and toning), before heavier creams. Apply to clean, dry skin for best absorption, then always finish with SPF.
How to use
HOW TO USECleanse
Start with clean, towel-dried skin in your morning routine.
Dispense
Twist to open, hold the pump at a 45° angle, and press firmly halfway for a coin-sized amount.
Apply
Spread evenly over face and neck. Let it fully absorb before the next step.
Moisturize
Layer remaining products in order of thickness, finishing with your moisturizer.
Protect
Always follow with a broad-spectrum SPF. Twist the pump closed to maintain freshness.
Who is it for?
WHOPerfect for you if:
- You have sensitive skin and can't tolerate strong L-ascorbic acid
- You want brightening without stinging or irritation
- You prefer a fragrance-free, non-comedogenic formula
- You're tackling dullness, uneven tone, or early signs of aging
- You want a stable vitamin C that won't oxidize quickly
Consider alternatives if:
- You want maximum potency from pure L-ascorbic acid (15–20%)
- You strictly follow a fungal-acne-safe routine
- You're on a tight budget — derivative dupes cost less
- You want fast, dramatic dark-spot fading
- You dislike pump packaging that can over-dispense
Skin type compatibility
SKIN TYPESLightweight and fast-absorbing — won't add shine or a greasy feel.
Squalane adds hydration, but very dry skin should layer a richer moisturizer on top.
Balances hydration and lightness — the brand notes it's ideal for combination skin.
Fragrance-free with soothing oatmeal and feverfew; 98% reported no irritation. Patch test if very reactive.
Non-comedogenic and won't clog pores, but it is not fungal-acne (malassezia) safe.
Results timeline
8–12 WEEKSComfortable First Impressions
Skin feels soft, hydrated, and non-sticky right away. No tingling or strong scent typical of vitamin C.
91% felt nonsticky with no bad smellVisible Brightness
The most-cited early benefit. In the brand's consumer study, the majority saw a more radiant, luminous complexion.
93% said skin looked brighterMore Even Tone
With consistent daily use plus SPF, skin tone looks more uniform and overall texture appears smoother.
Most users notice continued radianceSoftened Dark Spots & Firmer Look
Vitamin C derivatives work gradually — sustained use supports faded dark spots and a visibly firmer appearance.
Best results with daily consistencyRatings by platform
1K+ REVIEWSPros & cons
BALANCEDPraised
- Gentle enough for sensitive skin (98% reported no irritation)
- Fragrance-free with no "hot dog" vitamin C smell
- Lightweight, absorbs fast, and feels non-greasy
- Visible brightness (93% in 10 days in brand study)
- Non-comedogenic — won't clog pores
Criticized
- Uses a derivative, less potent than pure L-ascorbic acid
- Pricier than budget dupes with similar actives
- Not fungal-acne (malassezia) safe
- Results are slower than high-percentage L-AA serums
- Pump can over-dispense product
Budget-friendly alternatives (dupes)
DUPES
Uses the same ethylated vitamin C at a higher 15%. More potent on paper but has an oilier feel and lacks the soothing botanical blend.
A water-light 15% L-ascorbic acid + ferulic + vitamin E serum. Stronger antioxidant trio, but pure ascorbic acid can be less gentle for very sensitive skin.
Affordable multi-vitamin-C blend with hydrators. Similar brightening goal at a lower price, but a different formula and less sensitive-skin focus.
Comparison with competitors
SIDE-BY-SIDE
The Ordinary Ethylated Ascorbic Acid 15%
Storage & shelf life
12 MONTHS12 months after opening
Store in a cool, dry place away from direct sunlight; twist the pump closed after each use.
Twist-lock pump bottle that limits air exposure to help keep vitamin C fresh.
Yes — 50ml is under the 100ml carry-on liquid limit.
Frequently asked questions
FAQIt's generally considered safe during pregnancy and breastfeeding. Vitamin C (3-O-Ethyl Ascorbic Acid) is a commonly recommended pregnancy-friendly active, and the formula contains no retinoids, hydroquinone, salicylic acid, or chemical sunscreens. As with any product, confirm with your OB-GYN or dermatologist first.
No. It contains polyglyceryl esters (Polyglyceryl-6 Polyricinoleate and Polyglyceryl-10 Dioleate) plus squalane, which can potentially feed malassezia. If you strictly manage fungal acne, this serum isn't an ideal match.
Yes, with care. It layers well with niacinamide and hyaluronic acid. Vitamin C is best used in the AM, while retinol and strong exfoliating acids are typically used at night — separating them reduces the chance of irritation. Introduce new actives gradually.
It's designed for all skin types and is especially good for sensitive and combination skin. The gentle ethyl ascorbic acid form and soothing botanicals make it a strong choice for those who can't tolerate pure, high-strength vitamin C.
In the brand's consumer perception study, 93% saw brighter, more radiant skin after just 10 days. More even tone typically develops over about 4 weeks, while fading dark spots and firmer-looking skin build gradually over 8–12 weeks of consistent daily use with SPF.
Use it in the morning after cleansing (and toner, if you use one) and before moisturizer. Apply a coin-sized amount to face and neck, let it absorb, then always finish with a broad-spectrum sunscreen.
No. The serum is brand-tested as non-comedogenic with a low comedogenic rating (~1/5). It's lightweight and won't leave skin feeling sticky or greasy, making it suitable for breakout-prone skin (though it's not fungal-acne safe).
About 12 months after opening (12M PAO). Store it in a cool, dry place away from sunlight and keep the pump twisted closed between uses to help the vitamin C stay stable and effective.
Verdict: First Aid Beauty's 10% Vitamin C Brightening Serum is one of the most approachable vitamin C options for sensitive and reactive skin. The stabilized 3-O-Ethyl Ascorbic Acid delivers real brightening (93% saw radiance in 10 days) without the sting, smell, or oxidation problems of pure ascorbic acid, and the squalane, vitamin E, and soothing botanicals make it comfortable for daily AM use. It's not the most potent or budget-friendly choice, and it isn't fungal-acne safe — but for anyone who wants a gentle, fragrance-free glow-up, it's an easy, low-risk pick.
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 2 ingredient(s):
Promotes Wound Healing from 2 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
|
|
|
| 0 |
3-O-Ethyl Ascorbic Acid
Skin Conditioning
|
Redness
Texture
Pores
|
|
| 1 |
Squalane
Skin Conditioning, Emollient, Hair Conditioning, Refatting
|
Hydrating
|
|
| 1 |
Sodium Citrate
Masking, Ph Adjuster, Buffering Agent, Chelating
|
|
|
| 0 |
Tocopheryl Acetate
Skin Conditioning, Antioxidant
|
|