EUK 134 0.1%.

"EUK 134 used to be really difficult to find, but then The Ordinary came out with their serum and kind of took all the stress out of it. It works on certain components of our skin to help tighten things at the margins. This isn't going to be a groundbreaking solution to jowls or increasing definition, but it will definitely help at the margins. 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."

"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. But it's a wild card for a good reason, and it's related to that superoxide dismutase. If you want that in like a serum form, really, really good. They say that it's a mimetic of superoxide dismutase and catalase and that it's a regenerating molecule, so basically it refreshes itself. If you're looking for like a next level antioxidant, this is probably going to be it."