C Forte
C Forte Morning Serum is packed with 16% L-ascorbic acid, the purest form of Vitamin C, combined with vitamin E and ferulic acid for maximum results. Vitamin C (Ascorbic Acid) is an anti-oxidant helping neutralise free radicals (associated with exposure to the sun). The result? A brighter, firmer, plumper looking skin with fewer fine lines apparent and a more even skin tone. Formulated at the ideal pH (2.5-3.5) and housed in airless, opaque packaging, C Forte ensures stability and effectiveness, delivering radiant skin with every use.
Featuring;
- Evidence based ingredients and formulations for superior efficacy.
- Potent skin brightening ingredients
- A plumper, more hydrated and even toned skin.
Note: C Forte can exacerbate acne and may be too strong for irritable skin.
Ships from our Sydney warehouse
ESK Benefits
Do not use if you have sensitive or acne prone skin. All other skin types are suitable!
L-Ascorbic Acid
Also known as Vitamin C, L-Ascorbic Acid (Vitamin C) is a well-studied antioxidant that helps improve the appearance of uneven skin tone and supports smoother-looking skin.
Vitamin E (α-Tocopherol)
Vitamin E is a well-studied antioxidant commonly used in skincare to help support an even-looking skin tone and maintain the appearance of healthy skin. It is often included in formulations alongside other ingredients, such as Vitamin C, for complementary benefits.
Ferulic Acid
Ferulic acid’s emerging evidence suggests it can improve the effectiveness of Vitamin C and help to reduce the appearance of fine lines and wrinkles.
Apply 1 – 2 pumps to fingertips and apply to face after cleansing in the morning. Also for use on décolletage, back of hands and forearms.
Brighten Your Skin
A potent antioxidant serum that supports the skin’s appearance and hydration.
The antioxidant vitamins C (L-Ascorbic Acid – 16%), E (Tocopherol – 1%) and Ferulic Acid (0.5%) are combined in a stable formulation designed to maintain the integrity of the ingredients and support the skin’s natural moisture balance. Vitamin E and Ferulic Acid help stabilise Vitamin C, preserving its effectiveness over time. Some users may notice a slight scent from Ferulic Acid, which fades quickly after application.
Full Size – 50ml (lasts 3–4 months)
Travel Size – 15ml (lasts 3–4 weeks)
Glycerin, Water/Aqua, Propanediol, Ascorbic Acid, Butylene Glycol, Ethoxydiglycol, Tocopherols, Glycine Soja (Soyabean) Oil, Phenoxyethanol, Polyacrylate Crosspolymer-6, Ferulic Acid, 2-methylpropan-2-ol
Frequently Asked Questions
Yes, Vitamin C typically starts off clear and will gradually transition to a light yellow, darker yellow, and eventually dark orange/brown as it oxidises (exposed to light, heat, and air). Over time, once your Vitamin C becomes brown, it's time to dispose of the product as it loses efficacy and may be harder to tolerate.
No, just apply in the morning after cleansing.
C Forte is not recommended for sensitive or acne-prone skin, as the high concentration of L-Ascorbic Acid and its low pH can be too stimulating for reactive skin and may exacerbate breakouts. Those who only get occasional hormonal pimples may still be able to use it by applying it while avoiding blemish-prone areas. For sensitive skin, C Serum Lite is the gentler alternative.
Generally, we do not recommend oil-based products like our Vitamin C for oily or hormonal skin. However, if you only get the occasional break-out and want to incorporate Vitamin C into your regime, simply apply avoiding problematic areas.
Some users notice a slight scent from the Ferulic Acid, which is a natural characteristic of this ingredient. It fades quickly after application and is not a sign of spoilage.
Before & Afters
Over 80,000 people are improving their skin with Evidence Skincare.
Alida H
Verified
Hydroxy Cleanser, C Forte, Enlighten Gold, Zinc Shade, Smooth Serum, Hydraboost HA Serum, Ultimate A Gold
"So i’ve been using ESK for about 6 weeks now and i’m super happy with the results. Photo (no filter on either) on the left is before incase it’s not obvious. I have the pigmentation kit and it has made my skin feel amazing. I think there’s a difference in appearance as well. I love the ritual of putting on the different steps morning and night and I will continue using the kit now as it’s part of my daily ritual."
Anne-Marie S
Verified
Pigmented Mature Dry Kit, Calming Cleanse, C Forte, Enlighten, Zinc Shade, Gentle Glow PHA Serum, Ultimate A
"Have really noticed a difference in my rosacea in the short time I have been using the ESK products in the rosacea kit. The bottles are numbered which makes them a breeze to use and the products themselves feel amazing on my skin. Will continue to use these products (and add a few more!) as am sure I will continue to see results the longer I continue to use them."
Bronwyn S
Verified
Pigmented Rosacea Kit, Calming Cleanse, Enlighten, Zinc Shade, Gentle Glow PHA Serum, Ultimate A
"I started using ESK hoping it would help reduce the redness on my cheeks. My other area of concern was the crepey skin on my neck. I have been using the rosacea kit for a month now and really love the products. The texture of my skin feels amazing and I think the redness has reduced.... hopefully more in the coming months! I think my neck has seen the biggest improvement. I think Enlighten is my favourite product, but I love using them all. I love the simplicity of the routine and how beautiful my skin feels after using it. Thank you"
Camille Z
Verified
C Serum Lite, Enlighten Gold, Zinc Shade, Smooth Serum, Ultimate A Gold, Hydroxy Overnight Mask
"My skin concerns were acne and pigmentation. Since using ESK, I have seen an incredible difference in my skin and can't be happier. I have recommended ESK to all my friends and family and tell them that they will be very impressed with the products and customer service."
Carol S
Verified
"Participated in a 2025, 12 week UK clinic trial. (No testimonial but pictures speak for themselves)"
Cathie W
Verified
Pigmentation Kit, Calming Cleanse, C Forte, Enlighten Gold, Zinc Shade, Smooth Serum, Ultimate A Gold
"I was searching for an Australian product that could assist me in my ageing skin and came across E.S.K. I was really impressed with the quality of their products and the customer service was extremely knowledgeable and helpful. After starting the pigmentation product line several weeks ago, my skin is feeling more hydrated and I am looking forward to seeing further results with my pigmentation and texture over the coming months."
Cathryn V
Verified
Menopause / Perimenopause Kit, Calming Cleanse, C Forte, Repair +, Zinc Shade, Gentle Glow PHA Serum, Ultimate A Gold, Enlighten
"I've had significant freckles since I was a kid (and yes, my parents were strict on
sunscreen use!) and as I have aged they have darkened and 'age spots' have appeared.
I was keen to try the ESK products and see if they would soften the pigmentation. I
noticed a reduction in pigmentation after using the ESK Enlighten Gold (with daily
sunscreen) for approx 6 months and this has been improved by adding the Ultimate Gold
in the evening.
I didn't expect fast results based on my history and from explanations in the articles on
pigmentation written by Dr Ginni.
I'm very happy with the results so far, I love the products and also learning of the science
behind them.
Congratulations on a fabulous science backed Australian-made product!"
Cathy S
Verified
Calming Cleanse, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Mature Lighten & Tighten Kit*, Mature Skin Anti-Aging Kit*
"I was very sceptical about this skin care range can it do what it claims to, it most certainly can I have noticed a big change to my skin it is alot clearer feel of redness and my pigmentation has improved ALOT! So if in doubt try it you will be very happy with the results and so little is needed so will last a long time alot more than other products on the market😊😊 plus not much makeup will be needed to cover skin as it glows"
Claire C
Verified
"Participated in a 2025, 12 week UK clinic trial. (No testimonial but pictures speak for themselves)"
Clarissa B
Verified
Mature Kit, Enlighten, Calming Cleanse, C Forte, Zinc Shade, Ultimate A, Smooth Serum
"I found the whole range very easy to use and great quality. I found the number 3 worked really well for me. I have used similar products in other high end ranges with the same UV properties and your number 3 impressed me. I couldn’t feel it on my face and it sat perfectly under my make up all day. Wonderful as a primer."
Danielle D
Verified
Pigmentation Kit*, Hydroxy Cleanser, C Forte, Zinc Shade, Smooth Serum, Enlighten, Ultimate A
"It is still a work in progress but I am so relieved to finally see results. I never had any pigmentation issues until about two years ago. I have tried so many different products and treatments which has just made my pigmentation worse. I cannot be happier as ESK has given back my confidence and I am able to face the world again without makeup!"
Deb A
Verified
Mature Kit, Calming Cleanse, C Forte, Zinc Shade, Smooth Serum, Ultimate A
"what I am finding when I am using the products with the needling roller my skin just glows as the products are absorbed. My skin is the and softest it has felt in some time - not bad for someone who is 54."
Dee-Anna R
Verified
"This product has been amazing! I thought I’d try the new Ultimate A gold. My skin is finally back to normal after suffering dryness and break outs. It’s taken a few months but I couldn’t be happier."
Eb C
Verified
Enlighten, Ultimate A+, Hydroxy Cleanser
"Honestly it's truly amazing! I will shout it from the roof tops!"
Elissa M
Verified
Mature Lighten & Tighten Kit*, Mature Skin Anti-Aging Kit*, Calming Cleanse, Enlighten, Zinc Shade, Smooth Serum, Ultimate A
"I have been using the range for around 5 weeks now and I really love the products. I have the range for Mature pigmented skin and the difference the products have made is noticeable for me. I had quite a lot of redness and lots of pigmentation. I always felt embarrassed not wearing a full coverage foundation. I also had skin that felt and looked tired with some dry patches. I noticed a difference in how my skin felt in the first week. By week 2 I was starting to see a softening of the pigmentation. 5 weeks in and I can really see the improvement. Simple regime, great products, practical packaging and excellent service."
Elizabeth J
Verified
Pigmentation Kit*, Calming Cleanse, C Forte, Enlighten, Zinc Shade, Smooth Serum, Ultimate A
"Have been using the Pigmentation Kit for 4 weeks now and have noticed an improvement in my overall skin tone, my hyperpigmentation has lightened a little (in the smaller spots) and I feel that I can go out without makeup on (maybe some blush and mascara). Very happy that the kit didn't react with my skin as I have sensitive skin. My skin feels more supple and smooth too. I cannot wait to see what another month or two brings with the kit!"
Emily G
Verified
Mature Lighten & Tighten Kit*, Mature Skin Anti-Aging Kit*, Calming Cleanse, Enlighten, Zinc Shade, Ultimate A
"I have been using the ESK range recommended for eczema for one month and can already see pigmentation lightening and a softening of fine lines of my face. I had been using a very basic skin care regime so I had some concerns about using ESK initially given there were 5 different products (including a cleanser), but the products are very easy to use, the numbering on some of the products assists with this. They also smell great and feel wonderful on my skin, even the all important Zinc Shade."
Emma N
Verified
Pigmentation Kit*, Calming Cleanse, C Forte, Enlighten, Zinc Shade, Smooth Serum, Ultimate A
"I can’t believe how much my pigmentation has settled down after 1 month. Also breakouts have disappeared. I’m so impressed. The products are divine! Thank you!!"
Florence M
Verified
Mature Lighten & Tighten Kit*, Pigmentation Kit*, Calming Cleanse, Enlighten, Zinc Shade, Smooth Serum, Ultimate A
"I followed the morning and evening routine to the letter. I noticed some improvements on my skin texture, smaller pore size and skin glowing/looking very healthy .Is it a miracle cure? My pigmentation did not disappear but I never expected that to happen in 4 weeks!! But it did noticeably improve. Did I like it? YES! So it is a big thumbs up from me from a quality perspective, it is gentle enough to apply everyday without any of the harsh side effects of general targeted treatments yet effective!"
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