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@mandydavismua reviewing Medik8 Liquid Peptides Advanced MP at 02:47 in a YouTube Shorts videoLiquid Peptides Advanced MP"This is one of my favorite skin care products of all time."$94.00@madaboutskin reviewing Medik8 Crystal Retinal 24 at 14:55 in a YouTube Shorts videoCrystal Retinal 24"This is the world's strongest over-the-counter retinoid."$135.00amandaz mentioning Medik8 Liquid Peptides at 29:17 in their YouTube videoLiquid Peptides"This has like really really great clinicals."$67@vanitarattan reviewing Medik8 C-Tetra at 16:28 in a YouTube Shorts videoC-Tetra Advanced Gel-Serum"The positives of this is that they've used tetrahexyldecyl ascorbate, brilliant."$79@thehonestchannel reviewing Medik8 C Tetra Luxe 14% Vitamin C Serum at 09:02 in a YouTube Shorts videoC-Tetra Luxe Vitamin C Serum"The Medik8 serum did marginally improve my pigmentation over a 4-month period of applying it every morning."$68.00@musingsofacurvylady reviewing Medik8 OXY-R Peptides Serum at 14:46 in a YouTube Shorts videoOxy-R Peptides Serum"This has been so effective, so mighty yet tiny, very powerful."-

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Liquid Peptides Advanced MP
4.9Liquid Peptides Advanced MP
  • “This is the best anti-wrinkle serum on the market”9:46–9:53
  • “It is $94. Okay, I know. But so worth it, especially if you are looking for helping you age gracefully”9:55–10:01
  • “This is one of the only anti-wrinkle creams that actually does what it says because it has many proteins and growth factors which are going to help in creating more collagen, more hyaluronic acid, which is going to give you that plump, juicy skin”10:06–10:12
  • “It helps to tighten and smooth out fine lines within 10 minutes. So this is a must before any makeup application”10:22–10:29
  • “I've been using this over a year. I feel like my skin has never looked better and it's because of this product”10:35–10:41
  • Source: Undupable Beauty Products Worth the Money - Jul 30, 2026
Musings of a Curvy LadyMusings of a Curvy Lady91K subscribers
4.9Liquid Peptides Advanced MP
Stephanie MarieStephanie Marie280K subscribers
4.5Liquid Peptides Advanced MP
  • “This is an advanced growth factor serum that uses biocompatible growth factors, the ones that are already present in our skin”13:31–13:42
  • “This is the most affordable of the biocompatible growth factors that you will find on the market”13:45–13:50
  • “I really do prioritize growth factors in my skin care routine, so I leveled up by going for this”
  • “Medik8 is that beautiful mid-market price, delivering that top-notch growth factor action without necessarily costing an arm and a leg”14:28–14:34
  • Source: Greatest skincare products 2026 - summer edition - Apr 11, 2026
Mad About SkinMad About Skin720K subscribers
Crystal Retinal 24
3.7Crystal Retinal 24
Dr. Sarah SheuDr. Sarah Sheu14K subscribers
Liquid Peptides
C-Tetra Advanced Gel-Serum
C-Tetra Luxe Vitamin C Serum
4.2C-Tetra Luxe Vitamin C Serum
The Honest ChannelThe Honest Channel187K subscribers
Oxy-R Peptides Serum
Brand note

Medik8 is a mid-market skincare brand that creators turn to for serious, well-formulated actives — particularly their retinal and growth factor serums. The Crystal Retinal line offers a progressive strength ladder that makes it easier to build tolerance, though it can get pricey at higher strengths. The brand also has a strong growth factor serum, Liquid Peptides Advanced MP, that multiple creators rely on consistently. Overall, Medik8 delivers effective, results-driven products that tend to be worth the investment, but the pricing on some items may be a consideration.

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