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L-Ascorbic Acid (Vitamin C) Skincare

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L-Ascorbic Acid (Vitamin C) Skincare

Vitamin C is one of the most popular ingredients in skincare, and for a good reason. ESK has formulated two Vitamin C serums packed with powerful L-Ascorbic Acid to restore and replenish the skin while protecting against further damage. See bottom of page for more information on Vitamin C.
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Showing 7 products
Reverse C Serum
$76
C Serum Lite
$72
Mature Skin Anti-Aging Kit

Mature Skin Anti-Aging Kit

$296
$148
Normal Skin Anti-Aging Kit

Normal Skin Anti-Aging Kit

$296
$148
Dry Skin Anti-Aging Kit

Dry Skin Anti-Aging Kit

$357
$178
Mature Lighten & Tighten

Mature Lighten & Tighten

$422
$211
Pigmentation Kit

Pigmentation Kit

$368
$184

Customer reviews

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Kim C

Hydroxy Cleanser, C Serum Lite, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Mature Skin Anti-Aging Kit, Mature Lighten & Tighten

"I've been using the pigmentation products for a month now, I'm very happy with the results, my brown spots have certainly faded, my overall skin is looking much better, and I'm looking forward to even greater results as I continue on using this fabulous skin care regime. I love the way my skin feels after each use and my makeup glides on to give a nice dewy effect which I haven't been able to achieve for some time. I'm feeling more confident in being able to reduce my makeup usage overall."

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Kelly K

Hydroxy Cleanser, Reverse C Serum, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Normal Skin Anti-Aging Kit, Mature Lighten & Tighten

"Hi, my name is Kelly and I have suffered with problematic skin for most of my life. I had terrible acne and chicken pocks as a child that resulted in scarring. Then along came the fine lines and wrinkles. In just under two weeks, I have seen a massive change! The regime is incredibly easy to follow, you don’t need much of it and it is an Australian product! I am finally proud of my skin and cannot wait to see what my face looks like in a month! I am so grateful! Thank you Esk!"

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Jacqui V

Calming Cleanser, Reverse C Serum, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Mature Skin Anti-Aging Kit, Mature Lighten & Tighten

"I would just like to say how impressed I am with ESK skin care.

I turn the big 60 this year and have be looking for a skin care for mature skin. I was watching Sunrise and Ginni came on talking about ESK. So I thought I would give it ago and I loved the fact that it was made in Australia. I love the way the cleanser made my skin feel so clean and light and the way the products sunk straight into my skin. Which I have been looking for forever. Most products just sit on top of my skin which is frustrating and can be very expensive.

My skin looks smoother and plumper. Finally something that works 😊 Thanks ESK"

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Charmaine F

Hydroxy Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Normal Skin Anti-Aging Kit

"E.S.K is a fabulous product. I thought I would struggle to incorporate a skincare routine in my life but after using E.S.K for a month, I realised how easy and rewarding it is to take better care of my skin. I love that all the bottles are labelled using numbers so even on a busy morning, I can certainly take care of my skin without worry."

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Gillian O

Calming Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Mature Lighten & Tighten

"I have noticed an overall difference in the feel of my skin, it feels more plump and the colour has evened out. Wrinkles appear to have less depth. I have just started to use eye serum which I am excited about.

Extremely impressed with results so far, only regret is I wish I had started using it sooner."

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Emma N

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit

"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!!"

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Gemma C

Hydroxy Cleanser, C Serum Lite, Enlighten, Smooth Serum, Ultimate A

"My tailored ESK skincare set has exceeded all my expectations. I actually didn’t realise how dull and badly pigmented my skin was until seeing my own 4 weeks progress and honestly being in complete shock of the difference it has made!

I feel so much more confident now to let my natural skin be on show and not having to hide it behind a face full of makeup. I will 100% continue to use this regime as if it can make this difference in just one month imagine what the long term results can be.

Would highly recommend them to anyone that is facing their own skincare issues."

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Nicolle G

Hydroxy Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Normal Skin Anti-Aging Kit, Mature Skin Anti-Aging Kit

"I have used a lot of different skincare products over the years, including professional clinical products and without a doubt, I have found ESK skincare to be the best. Their evidence based products feel lovely on my skin and my expression/age lines have softened and are less noticeable. I am lucky to be blessed with good skin, especially for my age, but ESK products are definitely making a positive difference and my skin looks and feels healthy. I am a repeat customer and will happily remain a loyal one."

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Susan B

Calming Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Normal Skin Anti-Aging Kit, Mature Skin Anti-Aging Kit

"I actually do think esk products have improved my skin, maybe got rid of a few fine lines but my skin just looks and feels healthier almost glowing, I’m also really impressed with the after sales service.. such a personal touch that is rare these days"

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Alex H

Calming Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Acne-prone/Oily kit, Dry Skin Anti-Aging Kit

"Prior to using ESK my skin was horrible, I tried lots of different skin care products, medication, saw a skin care specialist and nothing worked. It was my mum that actually found ESK and got me using the products and within a week my skin had already cleared up. I absolutely love how they feel and how reliable this brand is. I use my products every day morning and night and don't know what I would do without them!"

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Andrea K

Hydroxy Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Dry Skin Anti-Aging Kit, Mature Skin Anti-Aging Kit

"I have been using ESK skincare products for about 8 months now and I’m absolutely loving the results. I’m in my 50’s and was concerned with ageing and dryness. I find the ESK products have really improved my dry skin and overall skin texture. I also find the pump application great and one pump gives you the right amount so you’re not wasting any product. I was initially drawn to ESK because it is Australian made, evidence based and cruelty free but have continued with it because I’m loving the results and find it’s great value for money.

All in all I’m very happy with the products and couldn’t recommend them more highly."

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Marcia P

Calming Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Dry Skin Anti-Aging Kit, Mature Lighten & Tighten

"My name is Marcia and at age 51 my skin is definitely on the mature side as well as being dry. I was hoping to get results to reduce pigmentation and fine lines as well as to increase the general hydration of my skin. Ive been using ESK for 1 month. My favorite product is the Reverse "C" Serum. I just love how my skin feels after it absorbs into it. I am absolutely thrilled with the way my skin is feeling so hydrated and I can really see a difference with the pigmentation. Even the skin on my neck feels soft all day long and I'm feeling confident that with continued use my results will continue to improve. Yes I would recommend E.S.K and infact, after years of breakouts and acne with no real improvement from many products, my daughter is going to try the Acne Kit range. I can't wait to see the results for her."

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Renee M

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Normal Skin Anti-Aging Kit

"I have been using E.S.K now for 4 months and the difference I have seen and felt is beyond amazing. Being from the health care industry myself I know the importance of evidence based and scientifically tested products. I have searched for years to find a skin care range that is both gentle and safe but also effective, my skin has never been clearer. My pigmentation and skin tone are now even and I feel like I have a healthy glow. I am now happy to go without makeup and I can’t recommend E.S.K products more highly. Thank you."

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Helen F

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Normal Skin Anti-Aging Kit

"I had blotchy skin tone and at aged 50 wrinkles appearing. I have been using ESK for a year now and it is a top quality facial skincare product. My skin tone is much more even and the redness is gone. Both photos are taken without any makeup. I use the Pigmented/Age Spot Kit on my skin. Thank you Esk for developing this skincare range."

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Charlotte C

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit, Acne-prone/Oily kit

"Skin is definitely smoother after 30 days of use. I personally love the enlighten cream, it's so light on my skin. Thanks team for the amazing products! "

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Sallie H

Calming Cleanser, Reverse C Serum, Zinc Shade, Smooth Serum, Ultimate A, B Quenched, Mature Skin Anti-Aging Kit

"I have been using Dry Skin Anti Aging products for almost three months and I have noticed a difference in the texture of my skin. The products are easy to use and very moisturising. When I wake in the morning, my skin feels dewy and moisturised. I also love the fact that your products are not tested on animals. I have also found the service given by E.S.K. staff is outstanding. This is the best product I have ever used."

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Heather S

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Mature Skin Anti-Aging Kit, Mature Lighten & Tighten, Pigmentation Kit

"I feel pigmentation is less. My skin feels good & hoping with longer use, maybe, just maybe, my age spots will lighten. Thank you Ginni, Daniel & staff."

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Virginia J

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Normal Skin Anti-Aging Kit,

"I’ve been using the pigmented skin kit for a month and have noticed that my skin is now smooth and soft, whereas before it was rough and patchy. Areas of pigmentation are lighter and less apparent. I’ve found the product to be pleasant to use and I love the smell of the cleanser. My travel kit is also lasting a lot longer than I expected!"

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Jacinta S

Hydroxy Cleanser, C Serum Lite, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Pigmentation Kit,

"I’ve struggle with pigmentation problems since my pregnancy and maybe age...so I started using esk skincare and I am already noticing a huge change in my skin (the very first photo I took was so bad that I didn’t even post it and I actually wanted to cry) they have been so great with helping me and I highly recommend their products!"

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Paula E

Calming Cleanser, Reverse C Serum, Enlighten, Zinc Shade, Smooth Serum, Ultimate A, Mature Skin Anti-Aging Kit, Normal Skin Anti-Aging Kit

"I’m very impressed with my new skincare regime.ESK recommended a skincare pack for me after I answered a few questions. 1 week after receiving my skincare I had a friendly phone call to make sure l was happy with everything. I have skin pigmentation and feel that my skin now has more of an even tone and a healthy glow. My skin feels soft and smooth. There are more days now l can go without makeup. Thankyou for your recommendation."

Evidence-based Vitamin C Serum

When it comes to cosmeceutical skincare, L Ascorbic Acid, AKA Vitamin C delivers a powerful boost to your skin! It’s an antioxidant, helping combat damage done by the sun’s UVA and UVB rays. It helps boost collagen production and stabilization.

L Ascorbic Acid is anti-inflammatory which can help with very dry skin conditions and also inhibits the enzyme tyrosinase, which produces melanin in the skin. The result? Brighter skin, less fine lines and wrinkles, less pigmentation and better hydration! 

So, shopping for L-Ascorbic Acid skincare is a no brainer. But make sure you’re using pure L-ascorbic acid, which is the evidence-based form of Vitamin C. Research tells us that we need L-ascorbic acid at concentrations around 10% to be effective and that L-ascorbic acid serums must be in a pH below 3.5 (acidic) to remain stable. Also make sure your vitamin c serum comes in an airless opaque bottle to preserve the integrity of the L- ascorbic acid. 

ESK’s L-Ascorbic Acid serums use 10% L-Ascorbic Acid with Vitamin E, have a pH of 2.75-3 and come in airless, opaque bottles to ensure for the most hygienic and stable product. Browse and shop our Vitamin C skincare night creams here! Australian customers can enjoy free express shipping and a money back guarantee!