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New Formula
Regena C20 Vitamin C Serum
Regena C20 Vitamin C Serum with 20% Ethyl Ascorbic Acid
Regena C20 Vitamin C Serum with 20% Ethyl Ascorbic Acid
Regena C20 Vitamin C Serum with 20% Ethyl Ascorbic Acid
New Formula
Regena C20 Vitamin C Serum
Sale
New Formula

Regena C20 Vitamin C Serum

with 20% Ethyl Ascorbic Acid

Selected:

Just some of the reasons you’re going to love Facetheory

Fastest Delivery: Fri, Jul 01. Free US shipping and free returns.

combination dry dull normal oily pigmentation sensitive uneven-tone

  • Update! This product has now been reformulated with a more advanced form of Vitamin C (Ethyl Ascorbic Acid). The new formula is clear, and even less prone to oxidation due to being anhydrous.
  • Regena C20 is our bestselling Vitamin C serum formulated with 20% Ethyl Ascorbic Acid.
  • Stabilised vitamin C (Ethyl Ascorbic Acid) can help brighten dull skin, reduce the appearance of age spots and hyperpigmentation, and significantly reduce acne bacteria.
  • Ethyl Ascorbic Acid’s lipophilic and hydrophilic properties allow it to be easily absorbed by the skin, making it one of the most stable and efficient forms of ascorbic acid.
  • Free of parabens, silicones, PEGs, SLS, SLES, and mineral oils. Vegan and cruelty-free. Made in the UK.
  • Use on its own or underneath your favourite moisturiser.
  • A 30% version of this serum is now available. Find out more.

Regena Serum C20 contains 20% stabilised vitamin C (Ethyl Ascorbic Acid) to increase skin firmness, lighten age spots, help fight acne-causing bacteria and brighten skin.

+Actives
Recommended for

Most skin types, including sensitive skin. Can balance sebum production of oily skin.

Active Ingredients
Ferulic Acid
This key element of Japanese and Korean skincare is sourced from rice bran. A powerful antioxidant that helps stabilise actives and prevents damage caused by free radicals.
Vitamin C (Ethyl Ascorbic Acid)
Vitamin C is an essential antioxidant that fights acne bacteria, brightens skin, reduces pigmentation and evens skin tone. This product contains ethyl ascorbic acid, an exceptionally efficient and stable form of Vitamin C.
+Directions
Shake gently before use. Apply a few drops to clean, damp skin, concentrating on blemishes, fine lines, dark spots and areas of hyperpigmentation.
+Ingredients
Propanediol, 3-O-Ethyl Ascorbic Acid, Olive Oil Polyglyceryl-4 Esters, Dibutyl Lauroyl Glutamide, Dibutyl Ethylhexanoyl Glutamide, Ferulic Acid

This product is free from


Animal ingredients, benzalkonium chloride, benzophenones/benzophenone derivatives, bisphenol a (BPA), butoxyethanol, BHT, carbomer, coal tar dyes, -cones, ethanolamines (MEA/DEA/TEA), formaldehyde, hydroquinone, liquid petrolatum, methyl cellosolve, methylisothiazolinone, methylchloroisothiazolinone, mercury, mercury compounds, mineral oil, oxybenzone, parabens, paraffin oil, phenoxyethanol, phthalates, polyethylene glycol (PEGs), resorcinol, siloxanes, sodium nitrite, sulfates, thimerosal, triclosan, triclocarban.

+Data
ColourClear
pHN/A
ContainerAmber glass bottle with dropper that protects actives from UV light.
Rheology / GlideThin and creamy. Easily absorbed.
Odour Hints of botanicals and citrus.
Alcohol-free
Cruelty-free
Vegan
Paraben-free
Silicone-free
Sulphate / SLS free
+Shipping

You can choose your delivery options when you pay.  

United States Standard (3-5 days) - FREE 
Tracked US delivery - 3 to 5 days via USPS/FedEx. Shipped from US. No customs.
United States Express (2 business days) - $9.99 OR FREE ON ORDERS OVER $100
Tracked US priority delivery by FedEx - 2 business days.  Order before 6am PST/ 9am EST and get your parcel shipped the same day.  No customs fees required. 
DHL Express (2 days tracked) - $9.99 OR FREE ON ORDERS OVER $100
Trackable and fast delivery service by DHL. No customs fees required. Order before 6am PST/ 9am EST and get your parcel shipped the same day. DHL On Demand Delivery will then keep you fully up to date via e mail or SMS on the preferred shipping date, time and final mile option, if this doesn’t fit your schedule that’s ok, you are in control and have the ability to change to an option that suits you for no additional costs
Canada, Japan & Korea (4-7 days) - $9.99 OR FREE ON ORDERS OVER $60
REST OF WORLD (5-10 DAYS) - $9.99 OR FREE ON ORDERS OVER $100
Tracked delivery. Courier depends on country. International customs charges are generally not payable on orders less than $100 however we cannot be held responsible for any additional charges or delays due to customs inspections in your country.  
RETURNS
If you aren't happy with your product, you can get a refund at any time up to 365 days later without having to return your products. Read more here.

As Seen In

refinery 29
marie claire
huffpost
the independent
cosmopolitan

About Facetheory

We love the planet

We make clean skincare with the actives you love - packaged sustainably and priced affordably. We're vegan and cruelty-free (certified by Leaping Bunny).

70,000

Over 70,000 reviews

We've got over 70,000 real customer reviews so you can buy with total confidence.

Tried and true

We're so confident in our products that if you don't get better skin we'll give you your money back. You get 365 days to try them out.