the ordinary

The Ordinary EUK 134 Serum 0.1%

The Ordinary Authentic
✔︎ In Stock.

The Ordinary EUK 134 Serum 0.1% by The Ordinary


If you're looking for a highly potent antioxidant serum, look no further than The Ordinary EUK 134 Serum 0.1%. Antioxidants are famed for combating and preventing signs of premature ageing by fighting against free radical damage. This truly unique antioxidant has the ability to regenerate itself, offering round-the-clock antioxidant support. Enhance and protect your complexion with this extremely high concentration of EUK134. 

Features and benefits of The Ordinary EUK 134 Serum 0.1% include: 

  • Highly potent antioxidant serum
  • Prevents premature ageing
  • Fights and protects against free radical damage
  • Enhances the complexion
  • Provides long-lasting antioxidant support
  • Free from water, silicones, oils and alcohol
  • Use alone for best results
  • Suitable for all skin types
  • 30ml


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.


All of our products are filled/measured by weight/volume so the product is correctly filled to 30ml. The packaging does not accurately reflect the size of the fill. However, this is intentional as some air must be allowed at the top for the product to actually close.

Shipping & Returns
Reviews (4)
Review and earn
Works well - 16-01-2019 by

I recently incorporated EUK in my daily routine, mainly using it during AM as I usually apply Vit. C and sometimes using Glycolic Acid at PM. At first, I thought that I'm using too much EUK (I used 2 drops) as it does feel a bit oily. To my surprise, after massaging the product on my face, the oiliness completely gone and leave my skin feeling well hydrated and smooth. This product also works well under make up and does not cause pilling. I'm now officially "The Ordinary" hoarder as I always love their products!

pills badly! - 28-12-2018 by

I have recently incorporated the EUK serum into my morning routine in place of my vitamin c serum, because of its powerful antioxidant abilities but its so difficult to apply anything over it & makes anything you apply over it pill really badly, especially zinc sunblock which i wear daily. So for this reason i would only recommend using if your not going out in the day or if you have a few hours spare to let it properly sink in & then apply other products on top, but even then it still pills but not as bad but you will still need twice the amount of time to get rewards to try to disguise the pilling somehow?

A good antioxidant that has a dry oil feel - 17-12-2018 by

This product feels like a dry oil when applying. It dries down after a few minutes without making my skin very oily. I love the idea that EUK 134 can regenerate itself throughout the day. I always apply this when I know that I will be under sun that day. It does not break me out or cause any irritation.

Surprising favourite - 12-12-2018 by

I bought this on a whim, not knowing much about it. I love other The Ordinary products and, my gosh, did this one hold its own! It's a really strange consistency... it looks like an oil and repels water like an oil but it doesn't feel greasy. It goes super well under/with a moisturiser. I find it sits really well on my dry skin and leaves it looking plump and bright. Unfortunately, I haven't used it regularly enough to comment on long-term effects.

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