The Ordinary EUK 134 0.1%: a Guru Score of 81% from 5 experts

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

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✓Yay

"And I think it's a really easy one to slot into your skincare routine to just dial up the results that you see. [...] I would recommend this every day of the year. Such a great product to include. And at the moment, [...] The Ordinary have their 23% off sale, which brings this down to about £7 here in the UK. So super inexpensive way of just getting a little extra firming and lifting action going in your skincare routine."

All 2 takes from Mad About Skin

Top 5 ULTIMATE SKIN FIRMING SERUMS - Best Anti Aging Routine Yet

"And I think it's a really easy one to slot into your skincare routine to just dial up the results that you see. [...] I would recommend this every day of the year. Such a great product to include. And at the moment, [...] The Ordinary have their 23% off sale, which brings this down to about £7 here in the UK. So super inexpensive way of just getting a little extra firming and lifting action going in your skincare routine."

Top 5 SKIN FIRMING SERUMS - Lift Skin & Tighten Sagging Jowls

"One of my absolute favorite antioxidants for lifting and firming is The Ordinary EUK134. This is a super high potency antioxidant and works really well to preserve and protect collagen. It also has some great brightening benefits, too. So, it's a little bit of a double whammy that make it a bit of a no-brainer for an effective skincare routine. I absolutely love it and because it is quite high potency, some people do experience a little sensitivity with it, which I will call out."

Nipun Kapur

412k subs

✓Yay

"EUK 134 is by The Ordinary. This is one and the second is Resveratrol. Both EUK 134 and Resveratrol are ideal if you have dry sensitive skin and since you have dry sensitive skin you can even use it in the summer months."

All 2 takes from Nipun Kapur

Best Anti Aging For Dry Sensitive Skin | Nipun Kapur

"EUK 134 is by The Ordinary. This is one and the second is Resveratrol. Both EUK 134 and Resveratrol are ideal if you have dry sensitive skin and since you have dry sensitive skin you can even use it in the summer months."

Best Serums for Sensitive Skin | Nipun Kapur

"You can always try the EUK 134 again by The Ordinary. Skin combination skin slightly oily then I do recommend you try green tea serum as an alternate, green tea is a fabulous ingredient which is a natural antioxidant amazing but even if your skin is oily to combination it is going to work really really well."

Kelly Driscoll

90k subs

✓Yay

"This is a great antioxidant to go for if you are looking to brighten up dull skin and protect from UVB damage. This contains 0.1% of EUK, and EUK is actually recommended at 0.05% as being the max and the [...] effective amount to add into a skincare product, so just know that you're getting quite a bit. [...] This is an antioxidant that can help to reduce redness on the skin in addition to its fighting free radicals and all of that right, the antioxidant action."

Beyond50Skin

32k subs

✓Yay

"The aggressors cause these free radicals that cause skin damage, so we want to do in our anti-aging skincare routines everything that we can do to prevent free radical damage which causes aging. This is a very powerful one. If you want a very simple skincare routine, clean your skin, put a few drops of this on, and put your sunscreen on and you're good, literally that would be the simplest skin care routine that I can think of because antioxidants also help boost your sunscreen protection."

Cassandra Bankson

2.46M subs

✓Mixed

"The EUK from The Ordinary is one that I used to use in the past, not much anymore. It's a little bit finicky because it's hard to use. But she's like a little secret agent—she's got some tricks up her sleeves. The EUK can't be used with a lot of acidic products. You do have to be careful when adding it to a routine. I always need to like look at every single product and make sure that I know what I'm combining."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Frequently asked.

What is The Ordinary EUK 134 0.1%?

A serum formulated with EUK 134, a synthetic antioxidant intended to provide firming and antioxidant support.

Is The Ordinary EUK 134 0.1% worth it?

Mostly yes. 4 of the 5 gurus who reviewed it give it their stamp of approval, for a Guru Score of 81%.

What is The Ordinary EUK 134 0.1%'s Guru Score?

The Ordinary EUK 134 0.1% holds a Guru Score of 81%. That is our read on how warmly the experts talk about it, based on the verdicts of 5 expert reviewers we have collected.