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EUK 134.0 0.1%

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CLAIM TO FAME: A water-free, high-potency antioxidant formula for brighter, smoother, younger-looking skin

FAST FACTS: Features an extremely high 0.1% concentration of EUK 134, a mimetic of superoxide dismutase and catalase that forms an exceptionally rare self-regenerating molecule; fights free radicals, reactive oxygen species (ROS), and hydrogen peroxide (and after each antioxidant reaction, it regenerates itself so that it can undertake another antioxidant reaction); considered as one of the strongest antioxidants, it offers round-the-clock antioxidant support; best used once a day, in the AM, on its own or mixed with non-acidic formulations if desired; vegan formula is cruelty-free and doesn’t contain water, alcohol, oil, silicone, nut, gluten, and soy

PERFECT FOR: Minimizing visible redness and protecting against UV damage

January 5, 2018
”This product is a true gem! If I could I’d give it 20 stars. After literally three days I have been able to see visible results—glowing skin. Amazing!”

”I’ve been using it for about two months and must admit that it is one of the very few products I’ve tried that are true game changers. It gives me a healthy glow, radiance, even skin tone, less redness, and overall refreshed look. I am in love. Deciem, please don’t ever discontinue EUK.”

”For those having issue with consistency—I’m using 3-4 drops for my face and neck as the last serum, before creams and leave it for about 20 minutes before putting anything else on top.”
–MS (from theordinary.com)

WHAT YOU GET: (1) EUK 134.0 0.1%
INGREDIENTS: Propanediol, Ethylbisiminomethylguaiacol Manganese Chloride

Formulations are updated from time to time as part of The Ordinary’s commitment to innovation. As such, the ingredient list shown here may vary from the box of the product depending on time and region of purchase.

Apply alone or after water-based serums, before oils or heavier creams. Alternatively, mix with other treatments to enhance their antioxidant capacity significantly. Do not use with highly acidic formulations such as suspensions of ascorbic acid. Strong acids will completely destroy EUK 134, which is based on manganese.

The low price of this formula does not reflect EUK 134’s extremely high potency. EUK 134 is by far one of the strongest antioxidants available. While EUK 134 itself is very costly, the suggested concentration in any formula is below 0.05% and most formulas do not use this maximum suggestion. Our formula uses EUK 134 at an extremely high 0.1% concentration and we do not believe any product on the market today uses a higher concentration than this amount. This formula does not contain any water, silicones, oils, or alcohol. Water can impair the stability of any antioxidant.

The Ordinary’s antioxidant offering includes Resveratrol 3% + Ferulic Acid 3%. If you wish to take advantage of both formulas, either use them at different times or apply each in a separate step since acids and EUK 134 should not be mixed together. EUK 134 can also be mixed with most products such as Natural Moisturizing Factors + HA for a strong antioxidant boost.

The Ordinary

“Clinical formulations with integrity”—that’s what The Ordinary is about. Created to celebrate truth, veracity, and reliability, the beauty company is focused on advanced functional beauty while honestly communicating its products to its consumers. The end goal? Bringing to market effective, well-known technologies at reasonable prices. As part of DECIEM’s brands, The Ordinary is also free of Parabens, Sulphates, Mineral Oil, Methylchloroisothiazolinone, Methylisothiazolinone, Animal Oils, Benzalkonium Chloride, Coal Tar Dyes, Formaldehyde, Mercury, and Oxybenzone and does not test on animals. All you need is to try out one of their bestselling products, extremely affordable and effective skincare products and you’ll realize what makes The Ordinary, extraordinary.

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2 reviews

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4.5 out of 5
5 stars
4 stars
3 stars
2 stars
1 star
Certified Buyer
  • Skin Type Oily
  • Skin Tone Medium
  • Facial Features Morena
  • Age 18


this product was good naman yung effect niya parang kagaya siya nung sa klairs vitamin c but why 4 stars? kasi before i used this klairs vitamin c (for me 5 stars) talaga ginagamit ko pero medyo nakulangan sa budget and im inlove with vitamin c kaya nagtry naman ako ng iba, nakakalighten talaga yung klairs ng acne scars pero this euk medyo matagal talaga yung effect niya. more than a month ko na ito ginagamit and it helped my acne at bay naman pero yun nga hindi siya kagaya sa klairs na nakakalighten ng scars ng mabilisan.

8 months ago
Certified Buyer
  • Skin Type Combination
  • Skin Tone Medium
  • Facial Features Morena
  • Age 28

Great value investment

There are limited studies on topical EUK-134 on skin pre- and post-irradiation (e.g. exposure to UVA/UVB rays). The positive protective effect, especially in healing, inflammation and regeneration, occurred at a molecular level and require chronic and consistent application. So be prepared not to see instant effects through the naked eye. This purchase was out of curiosity and without any expectation. In my late teens and early twenties, it usually took me 3-4 days for a pimple to mature and heal on its own without scarring or darkening. I didn't use treatments, peels or facials. In my late twenties, it takes me 2 weeks to clear. Occasionally, large acne leaves little craters (I don't pop zits) or hyperpigmented areas. I had a new large pimple and a 4-day old red spot when I started using EUK. I didn't notice anything until a week later, some days after that bloody pimple popped, when I realized the pimple base looked red (vascular phase in wound healing) but miraculously flat. The surrounding area cleared of what was going to be an acne fest. The red spot on my nose became lighter and smaller. My older scars remained though. Marketed as an antioxidant, this isn't intended anyway as an alternative or replacement to resurfacing or other procedures and treatments. Overall, I noticed my skin appeared more radiant. When I added a new product into the regimen (The Ordinary Granactive Retinoid 2% Emulsion ironically) three days ago, I broke out again, but the pimples are not as painful and angry, have less pus and peripheral redness. This product absorbs very quickly, so be swift to apply and spread. Two drops can cover my entire face, one drop on the neck and decolletage. It is easy to layer and does not disrupt other products. It warms on touch but not burn. If you have issues with propanediol, your skin may not like this product or The Ordinary's Resveratrol + Ferulic Acid. I'm definitely in love with it and will retain this for preventive skincare. I will keep repurchasing this until the company ceases to produce.

about 1 year ago
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