10% Waterless Vitamin C Serum
10% Waterless Vitamin C Serum
Product Description
Product overview
A first-of-its-kind waterless vitamin C serum featuring 10% L-ascorbic acid that visibly brightens, targets dark spots, and reduces hyperpigmentation. The clinically tested, oil-free concentrate uses innovative waterless technology for maximum stability and potency until the very last drop.
Waterless Technology
Innovative anhydrous formula keeps vitamin C ultra-stable without water, preventing oxidation and ensuring maximum potency until the last drop.
Texture & feel
SENSORYWaterless Technology
Innovative anhydrous formula keeps vitamin C ultra-stable without water, preventing oxidation and ensuring maximum potency until the last drop.
Upcycled Ingredients
Features sustainably sourced upcycled tangerine peel and sugar beet (betaine) to boost hydration and reduce food waste.
Clinically Proven
Clinical study showed 16x improvement in dark spot intensity after 4-8 weeks of consistent use with 33 participants.
Multi-Action Formula
Combines 10% vitamin C with 1% alpha arbutin and ferulic acid for comprehensive brightening and anti-aging benefits.
Safety & compatibility
SAFEContains no retinoids, BHA, hydroquinone, or other pregnancy-restricted ingredients. Vitamin C is considered safe during pregnancy and breastfeeding. Always consult your healthcare provider.
Free from oils, fatty acids, esters, and polysorbates that feed malassezia yeast. Waterless base makes it ideal for fungal acne-prone skin.
Oil-free, silicone-free formula with minimal pore-clogging risk. Suitable for acne-prone and congestion-prone skin types.
10% L-ascorbic acid may cause mild tingling on first use, especially for sensitive skin. Start with once daily application and build up tolerance. Always patch test first.
While vitamin C provides some antioxidant protection, always follow with SPF 30+ during the day. L-ascorbic acid can make skin more photosensitive.
Clean at Sephora certified. Free from parabens, sulfates, phthalates, mineral oils, and synthetic fragrances. Leaping Bunny certified cruelty-free.
Ingredient breakdown
INGREDIENTSL-Ascorbic Acid (Vitamin C) 10%Gold Standard
The purest and most potent form of vitamin C, L-ascorbic acid is the gold standard for skin brightening. It stimulates collagen production, neutralizes free radicals, and inhibits melanin production for visible brightening.
- Clinical Evidence: Studies show 5-20% L-ascorbic acid boosts collagen synthesis and reduces hyperpigmentation
- Antioxidant Protection: Neutralizes free radicals from UV exposure and pollution damage
- Skin Firmness: Promotes collagen production for improved skin elasticity
Alpha-Arbutin 1%Proven
A gentle yet powerful skin brightening agent derived from bearberry. Alpha-arbutin inhibits tyrosinase enzyme activity to reduce melanin production, fading dark spots without the irritation of hydroquinone.
- Mechanism: Inhibits tyrosinase, the enzyme responsible for melanin production
- Synergy: Works synergistically with vitamin C for enhanced brightening
- Gentle Formula: Safer alternative to hydroquinone with no known toxicity concerns
Ferulic AcidStabilizer
A potent antioxidant that doubles as a formula stabilizer. Research shows ferulic acid enhances the photoprotection and stability of vitamin C by up to 8x when combined in the right ratio.
- 2005 Duke Study: Adding 0.5% ferulic acid doubled the photoprotection of a vitamin C+E formula
- Stabilization: Prevents vitamin C oxidation and extends product efficacy
- UV Protection: Additional antioxidant protection against sun-induced free radicals
Betaine (Sugar Beet Derived)Hydrating
A natural osmoprotectant derived from sugar beet that helps maintain cellular water balance. Betaine protects proteins from environmental stress while providing gentle, long-lasting hydration.
- Osmolyte Function: Helps control cell-water balance for optimal skin hydration
- Protein Protection: Protects skin proteins from denaturation and stress
- Sensorial Benefits: Improves formula feel and skin smoothness
12 ingredients
Propanediol, Pentylene Glycol, Ascorbic Acid, Betaine, Alpha-Arbutin, Ferulic Acid, Citrus Aurantium Amara (Bitter Orange) Fruit Extract, Citrus Reticulata (Tangerine) Fruit Extract, Citrus Aurantium Sinensis Peel Extract, Glycerin, Lactic Acid, Citric Acid
Where it fits in your routine
ROUTINEApply to clean, dry skin before heavier treatments and moisturizers. Can be used AM and/or PM. Always follow with SPF 30+ in the morning.
How to use
HOW TO USECleanse & Prep
Start with freshly cleansed, dry skin. Wait 1-2 minutes after cleansing to ensure skin is completely dry for optimal absorption.
Dispense & Apply
Apply 2-3 drops (one pump) to fingertips. Gently press and pat into face and neck, avoiding the eye area. The silky texture absorbs quickly.
Wait & Layer
Allow 1-2 minutes for full absorption before applying other serums or moisturizer. The formula should feel completely absorbed, not tacky.
Protect (AM)
Always follow with SPF 30+ sunscreen in the morning. Vitamin C enhances sun protection but does not replace sunscreen.
Who is it for?
WHOPerfect for you if:
- You have dark spots, hyperpigmentation, or sun damage
- Your skin looks dull and needs brightening
- You want to prevent early signs of aging
- You have fungal acne and need a safe vitamin C
- You prefer clean, minimal ingredient formulas
- Previous vitamin C serums oxidized too quickly
- You're pregnant/breastfeeding and need safe actives
- You want a stable, potent L-ascorbic acid formula
Consider alternatives if:
- You have very sensitive skin and need gentler derivatives
- You prefer higher vitamin C concentrations (15-20%)
- You need additional vitamin E in your formula
- You dislike oil-like textures or slight tackiness
- You're on a strict budget (more affordable options exist)
- You have active eczema or severely compromised barrier
Skin type compatibility
SKIN TYPESOil-free, lightweight formula absorbs quickly without adding shine. Waterless base won't contribute to excess oil production.
Betaine and glycerin provide hydration, but dry skin types should layer with a richer moisturizer for optimal comfort.
Balances well across oily and dry zones. Light enough for T-zone, hydrating enough for cheeks.
10% L-ascorbic acid may tingle initially. Start with every other day use. Consider gentler vitamin C derivatives if very reactive.
Non-comedogenic (1/5), fungal acne safe, oil-free formula. Helps fade post-acne marks and hyperpigmentation.
Results timeline
WEEKS 8-12Instant Radiance
Immediate glow and radiance after first application. Skin appears brighter and more luminous. Some users notice slight tingling that subsides with continued use.
92% noticed brighter skin after 1 useImproved Texture & Tone
Skin texture becomes smoother and more refined. Overall skin tone appears more even. Early signs of dark spot fading may begin.
85% reported improved skin textureVisible Dark Spot Reduction
Clinical studies showed 16x improvement in dark spot size and intensity. Hyperpigmentation visibly fades, skin tone becomes significantly more even.
16x improvement in dark spots (clinical study)Firmer, More Youthful Skin
Continued collagen stimulation leads to improved skin firmness and elasticity. Fine lines appear softened. Maximum brightening benefits achieved with consistent use.
78% noticed firmer skin with continued useRatings by platform
1K+ REVIEWSPros & cons
BALANCEDPraised
- Ultra-stable waterless formula prevents oxidation
- Clinically proven brightening results (16x improvement)
- Lightweight, quickly absorbing texture
- Fungal acne and pregnancy safe
- Clean, minimal ingredient formula (12 ingredients)
- No stinging or irritation for most users
- Sustainable, recyclable packaging
- Pleasant light citrus scent
- Pairs alpha arbutin with vitamin C for enhanced results
Criticized
- Higher price point ($50 for 30ml)
- Oil-like texture may feel too slick for some
- Only 10% concentration (some prefer 15-20%)
- No vitamin E in formula (unlike some competitors)
- Small bottle size for the price
- May cause slight tingling on sensitive skin
- Requires consistent use for best results
Budget-friendly alternatives (dupes)
DUPESHigher concentration (20% vs 10%), includes vitamin E for added benefits. Water-based formula so less stable than Farmacy. Excellent value and highly rated by skincare enthusiasts.
Same 10% L-ascorbic acid concentration with added salicylic acid for acne-prone skin. Contains hyaluronic acid for hydration. Great for sensitive skin with dermatologist backing.
Uses sodium ascorbyl phosphate (stable derivative) instead of L-ascorbic acid. Gentler formula with vitamin E and ferulic acid. Also fungal acne safe. Less potent but better for sensitive skin.
Very high concentration at 23% but in a different base (anhydrous). More gritty texture and can be irritating. Extremely affordable option for budget-conscious consumers.
Comparison with competitors
SIDE-BY-SIDESkinCeuticals C E Ferulic
Storage & shelf life
12 MONTHS12 months after opening. Waterless formula maintains stability better than water-based vitamin C serums.
Store in a cool, dry place away from direct sunlight. Refrigeration not required but can extend potency. Keep cap tightly closed.
Dark glass dropper bottle protects from light degradation. Fully recyclable through Farmacy's Empties Program.
Yes, 30ml is under 100ml TSA limit. Compact size fits easily in carry-on toiletry bag.
Frequently asked questions
FAQYes, this serum is considered safe for use during pregnancy and breastfeeding. It contains no retinoids, BHA (salicylic acid), hydroquinone, or other pregnancy-restricted ingredients. Vitamin C (L-ascorbic acid) is a naturally occurring antioxidant that is safe for topical use during pregnancy. However, always consult with your healthcare provider before introducing new skincare products during pregnancy.
Yes, this serum is fungal acne safe! The waterless, oil-free formula contains no fatty acids (C12-C24), polysorbates, esters, or fermented ingredients that feed malassezia yeast. The propanediol and pentylene glycol base is not a food source for the yeast that causes fungal acne, making this an excellent vitamin C option for those with pityrosporum folliculitis.
While vitamin C can be used with other actives, caution is recommended. For retinol: Use vitamin C in the morning and retinol at night to avoid potential irritation. For AHA/BHA: These can be used in the same routine but on different days initially, or wait 20-30 minutes between applications. The low pH of vitamin C works well before other actives. Start slowly and monitor for irritation.
This serum works well for most skin types but is particularly suited for oily, combination, and acne-prone skin due to its oil-free, lightweight formula. Dry skin types can use it but should follow with a hydrating moisturizer. Sensitive skin may experience initial tingling from the 10% L-ascorbic acid - start with every other day application and build tolerance.
Results timeline: Immediate radiance and glow from first use. Improved texture and tone within 2-4 weeks. Visible dark spot reduction at 4-8 weeks (clinical study showed 16x improvement). Maximum firming and brightening benefits with 8-12 weeks of consistent twice-daily use. Results vary based on individual skin concerns and consistency of use.
Apply to clean, dry skin as the first treatment step after cleansing and toning. The order: Cleanser → Toner → Vitamin C Serum → Other serums/treatments → Moisturizer → Sunscreen (AM). Wait 1-2 minutes after application before layering other products. Can be used both morning and night, but always follow with SPF 30+ in the morning.
No, this serum has a very low comedogenic rating of 1/5. The oil-free, silicone-free formula contains no pore-clogging ingredients. It's specifically designed to be non-comedogenic and is suitable for acne-prone skin. The waterless base with propanediol and pentylene glycol absorbs cleanly without leaving pore-clogging residue.
The serum has a PAO (Period After Opening) of 12 months. The waterless formula is significantly more stable than traditional water-based vitamin C serums, which typically only last 3-6 months. If the serum turns orange or brown, it has oxidized and should be discarded. Store in a cool, dry place away from direct sunlight to maximize shelf life.
Verdict: Farmacy's 10% Waterless Vitamin C Serum is an innovative, stable formula that delivers real brightening results without irritation. The waterless technology is a genuine differentiator, keeping the L-ascorbic acid potent longer than competitors. With added alpha arbutin and ferulic acid, it offers multi-pronged brightening power in a clean, fungal-acne-safe formula. While the $50 price point is higher than drugstore options and the 10% concentration is lower than some competitors, the excellent stability, clean ingredient list, and clinical backing make it a worthy investment for those seeking effective, gentle brightening. Highly recommended for oily, acne-prone, and fungal-acne-prone skin types looking for a reliable vitamin C serum.
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 |
|---|---|---|---|
| 1 |
Pentylene Glycol
Solvent, Skin Conditioning
|
|
|
| 1 |
Ascorbic Acid
Skin Conditioning, Masking, Fragrance, Antioxidant, Ph Adjuster, Buffering Agent, Buffering
|
Promotes Wound Healing
Redness
Dark Spots
Texture
Pores
|
|
| 1 |
Betaine
Skin Conditioning, Humectant, Viscosity Controlling, Antistatic Agent, Hair Conditioning
|
Hydrating
Irritation
Dark Spots
|
|
| 1 |
Alpha-Arbutin
Antioxidant, Skin Conditioning, Bleaching
|
Dark Spots
|
|
| 2 |
Ferulic Acid
Antimicrobial, Uv Absorber, Antioxidant, Preservative
|
|







