13,177+ Customers who love C Forte
Say goodbye to Wrinkles, Dark Spots, and Dull Skin? Reverse the Signs of Aging Today!
Our C Forte Serum is one of the strongest Vitamin C (also known as Ascorbic Acid) serums on the market!
- Evidence based ingredient Ascorbic Acid for rebuilding collagen
- Anti-Ageing serum for ages 30+
- Proven to reduce pigmentation
- Proven to reduce fine lines and wrinkles
50ml lasts 3-4 months
As seen in
Wrinkles, Sagging, and Tired Skin? Let CForte Turn Back the Clock!
Aging doesn’t have to show on your skin. Fine lines, wrinkles, and loss of firmness can be reversed with a solution that’s backed by science.
Our potent 16% Ascorbic Acid formula is a game-changer in skincare. Powered by the purest form of Vitamin C, a clinically proven antioxidant, this powerhouse is designed to:
Gentle yet powerful, it's the evidence-based skincare solution you've been waiting for.
START YOUR DAY WITH C FORTE & BOOST YOUR SKIN’S DEFENSE WITH CLINICALLY-PROVEN VITAMIN C
Smoother. Brighter. Stronger.
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PROOF IN THE RESULTS
91%
of ESK Vitamin C users noticed a difference in pigmentation, crow’s feet, fine lines, hydration / over all skin brightness*
What is Ascorbic Acid?
The purest form of Vitamin C that transforms your skin
Our founder
Dr. Ginni Mansberg
Ascorbic acid, the purest form of Vitamin C, is a powerhouse ingredient with clinically proven benefits. It neutralizes free radicals, boosts collagen production, and combats pigmentation by inhibiting melanin production. Paired with Vitamin E and ferulic acid in our C Forte formula, it delivers maximum results—protecting against environmental damage while improving skin texture and tone.
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Product Details and FAQs
C Forte is a high-potency Vitamin C serum formulated with 16% L-Ascorbic Acid, Ferulic Acid, and Vitamin E. This powerhouse combination turbocharges results, brightening skin, boosting collagen, and protecting against environmental damage.
C Forte is best for normal to dry skin types concerned with anti-aging, pigmentation, and sun damage. It is not suitable for sensitive or acne-prone skin due to its high potency.
Apply C Forte in the morning after cleansing. Follow with a moisturizer and SPF for optimal protection and results.
C Forte is designed to target:
- Anti-aging concerns (reducing fine lines and wrinkles)
- Boosting collagen production
- Reducing pigmentation and sunspots
- Hydrating and softening the skin
- Enhancing skin’s brightness and tone
L-Ascorbic Acid is the most potent form of Vitamin C. It delivers visible results by brightening skin, reducing pigmentation, and boosting collagen. In C Forte, it’s combined with Ferulic Acid and Vitamin E, which stabilize and amplify its effects, giving you maximum benefits.
C Forte’s unique combination of 16% L-Ascorbic Acid, Ferulic Acid, and Vitamin E offers unmatched potency and stability. Its water-free formula ensures the Vitamin C stays effective over time without oxidizing.
Yes, C Forte has a distinct smoky smell, which is normal for Ferulic acid. Ferulic acid increases the effectiveness of Vitamin C.
Absolutely. Vitamin C reduces pigmentation and dark spots by inhibiting melanin production and improving skin tone over time.
Yes! For a complete routine:
- In the morning, pair C Forte with Enlighten (Vitamin B3 and 4n-butylresorcinol cream) for brightening and pigmentation control, followed by Zinc Shade SPF for sun protection.
- At night, use one of our Ultimate A retinal products for enhanced anti-aging and skin-renewing benefits.
Yes, C Forte is safe to use during pregnancy and breastfeeding. It’s an excellent way to maintain healthy, glowing skin.
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The ESK Promise
- Evidence based ingredients
- Free check-in call
- Money back guarantee