1. What is L-Ascorbic Acid and why is it better than other forms of Vitamin C?

Ans: L-Ascorbic Acid is the purest, most bioavailable form of Vitamin C. Unlike derivatives such as Ethyl Ascorbic Acid (EAA) or Ascorbyl Glucoside, L-Ascorbic Acid does not need to be converted by the skin before it works, it is active immediately on contact.At 15% concentration, it delivers clinically proven benefits: antioxidant protection, collagen synthesis stimulation, and melanin inhibition to reduce dark spots. Most serums in the market use gentler derivatives because L-Ascorbic Acid is harder to stabilise. Foxtale's formula uses a combination of emollients and an optimised pH to keep 15% L-Ascorbic Acid stable and effective.

2. Is 15% Vitamin C too strong for beginners?

Ans: A 15% concentration of L-Ascorbic Acid is considered an intermediate-to-advanced strength. If you are new to Vitamin C serums, we recommend starting by applying every other day for the first two weeks to allow your skin to adjust.Foxtale's formula is enriched with emollients that help buffer the active and reduce the chance of initial tingling or redness. If you have very sensitive or reactive skin, do a patch test on the inner arm for 24 hours before full facial application.

3. How long does it take to see results?

Ans: Most users notice a visible glow and brighter skin tone within 5 days of consistent daily use. Deeper results, fading of dark spots, reduction in pigmentation, and a more even skin tone, typically become visible after 4 to 6 weeks.For best results, use every morning and night, always follow with SPF 50 sunscreen in the morning, and avoid applying retinol or strong exfoliating acids in the same step.

4. Can I use this Vitamin C serum with niacinamide?

Ans: Yes. The concern that Vitamin C and niacinamide cancel each other out is outdated. At the concentrations used in modern skincare, the two can be used together safely and even complement each other. Vitamin C addresses pigmentation and oxidative stress, while niacinamide strengthens the skin barrier and reduces pore appearance.You can layer them in the same routine or use them at different times of day.

5. Can I use this serum with retinol?

Ans: Avoid using Vitamin C and retinol in the same step. Both are potent actives that work best at different pH levels, and combining them at the same time can cause irritation and reduce the efficacy of each.Recommended approach: Foxtale Vitamin C Serum in the morning (followed by SPF), and your retinol product at night.

6. Is this Vitamin C serum suitable for oily, dry, and sensitive skin?

Ans: Yes, Foxtale Vitamin C Serum is formulated for all skin types.Oily skin: The lightweight, non-greasy texture absorbs quickly without clogging pores.Dry skin: The emollient-rich base provides hydration alongside the brightening actives.Sensitive skin: Begin with every-other-day use, do a patch test first, and avoid using alongside other strong actives in the same routine.

7. How should I store my Vitamin C serum to keep it effective?

Ans: Store your Foxtale Vitamin C Serum in a cool, dry place away from direct sunlight and heat. L-Ascorbic Acid is sensitive to light and air, which can cause it to oxidise and turn yellow or orange, this is normal. However, a significantly darkened or brown serum has reduced potency.Always close the cap tightly after use, and avoid storing in a humid bathroom if possible.

8. Do I need sunscreen after using this serum?

Ans: Yes, sunscreen is non-negotiable when using Vitamin C in your morning routine. Vitamin C boosts your skin's antioxidant defence against UV-induced free radicals, but it does not replace SPF.Without sunscreen, UV exposure can undo the brightening effects of Vitamin C and worsen pigmentation. Use a broad-spectrum SPF 50 or higher every morning after the serum has been absorbed.

★4.7

★4.7

Vitamin C Serum

5 days to brighter skin, 33 days to blemish-free skin | 30 ml

₹645

₹548

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Product Details

Helps With

Hero Ingredients

15% L-Ascorbic Acid

1% Vitamin E

15% L-Ascorbic Acid Brightens skin & fades pigmentation

1% Vitamin E Fights free radical damage & moisturizes skin

For

All Skin Types

Routine

Use daily in the morning and at night

This brightening serum with 15% L-Ascorbic Acid, the purest form of Vitamin C, and Vitamin E delivers visible glow in just 5 days. It goes 4x deeper to fade dark spots, reduce pigmentation, even skin tone, and boost radiance — faster than regular Vitamin C serums. Lightweight, rich in emollients, and suitable for all skin types, it gives 5 glowing benefits in 5 weeks.

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Vitamin C Serum

All About Vitamin C Serum

Expected Results

Your skin has a dewy glow

Slide to see expected results

Day 1

Day 5

Day 33

*Based on a consumer study conducted with 36 volunteers.

98.6%

98% of users experienced visibly brighter skin in 5 days

97.1%

97.1% of users noticed a reduction in dark spots

How to use

Complete Your Glow Routine

Step 1. Cleanse

Super Glow De-tan Face Wash

₹ 249|100 ml

Step 1. Cleanse

Super Glow De-tan Face Wash

₹ 249|100 ml

Step 2. Treat

Vitamin C Serum

₹ 645|30 ml

Step 2. Treat

Vitamin C Serum

₹ 645|30 ml

Step 3. Moisturize

Super Glow Moisturizer with Vitamin C

₹ 495|50 ml

Step 3. Moisturize

Super Glow Moisturizer with Vitamin C

₹ 495|50 ml

Step 4. Protect

Glow sunscreen SPF 50, In-Vivo Tested with PA++++

₹ 375|50 ml

Step 4. Protect

Glow sunscreen SPF 50, In-Vivo Tested with PA++++

₹ 375|50 ml

Things to keep in mind

Do not use the serum on wet skin.
Patch test before use
Start by using the serum 2-3x weekly.
Store it in a cool and dry place.

Full Ingredient List

Aqua, L Ascorbic Acid, Dicaprylyl Carbonate, C15-19 Alkane, Propanediol, Octyldodecanol, Octyldodecyl Xyloside, PEG-30 Dipolyhydroxystearate, Tocopherol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Ethylhexylglycerin, Phytic acid, Octenidine HCl, Sodium hydroxide, Sodium metabisulphite, Allergen Free Fragrance

Full Ingredient List

Our Vitamin C Serum Is

Vegan

Paraben Free

Dermatologically Tested

Cruelty Free

Sulfate Free

Reviewed and Trusted Across the Internet

4.1(14.2k+)(14.2k+) & 1.2k+ Reviews

1.2k+ Reviews

4(15.3k+)(15.3k+) & 650+ Reviews

650+ Reviews

4(4.8k+)(4.8k+) & 1.8k+ Reviews

1.8k+ Reviews

Users report their skin looks noticeably more radiant and glowing with regular use. Many mention visible brightening and reduction in dullness, with skin appearing fresher and more luminous than before.

Mentioned in 3540 reviews

Reviewers frequently report that dark spots and pigmentation marks become lighter and less visible over time. People appreciate how the serum helps even out complexion and reduce unwanted discoloration.

Mentioned in 3358 reviews

Users love that this serum feels weightless and absorbs quickly without leaving residue or greasy feeling. It works well under makeup and doesn't cause heaviness or stickiness throughout the day.

Mentioned in 3285 reviews

Reviews

4.7

★★★★★★★★★★

2374 REVIEWS

Kumar H.

★★★★★★★★★★

2 months ago

Amazing Experience

Very visible result in 3-4 days only

Jahnavi M.

★★★★★★★★★★

2 months ago

Absolutely love it

Loving this serum! Even better, I grabbed it from GrabOn using a coupon.

Akanksha K.

★★★★★★★★★★

3 months ago

Excellent product

Even after first use I noticed the difference. Must have product for face care

Lem j.

★★★★★★★★★★

3 months ago

So happy i decided to chose it.

After using these products my postpartum pigmentation started to vanish and my skin started to glow. Thank you foxtale

Vitamin C Serum

All About Vitamin C Serum

Expected Results

Complete Your Glow Routine

Things to keep in mind

Full Ingredient List

Full Ingredient List

Our Vitamin C Serum Is

Reviewed and Trusted Across the Internet

FAQs

Additional Information

Get Glowing & Brighten Skin with Vitamin C Serum