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✨ Unlock radiant, age-defying skin while you sleep!
Medik8 Crystal Retinal 6 is a potent night serum featuring 0.06% retinaldehyde, delivering anti-aging results up to 11 times faster than retinol. Enhanced with hyaluronic acid and vitamin E, it deeply hydrates and firms skin, reducing fine lines. Designed for experienced retinoid users, this gluten-free, scientifically formulated serum is crafted in the UK by a B Corp certified brand committed to sustainability and cutting-edge skincare innovation.








| Asin | B0BHX6BHB3 |
| Best Sellers Rank | #82 in Facial Serums |
| Item Model Number | Crystal Retinal 6 Serum |
| Manufacturer | Medik8 |
| Product Dimensions | 2 x 1.3 x 5.5 inches; 1 ounces |
| Upc | 818625029135 818625023409 |
User
It works great but consistency and time are key !
Very honest review of a 48 yo with combo skin. Today is exactly 8 weeks since I started using this product, Crystal Retinal 6. I used other retinoid for several months prior, if you have not, you may want to start at a lower concentration. When I started using it I used it every night, again, because I already had a good tolerance to retinoids. I liked it right away, but didn’t review until today. This was the first Medik8 product I bought after research. This is a very good brand and company imo.Here are my impressions of Crystal Ratinol 6: zero irritation (my skin is not super sensitive or dry). Within a week my skin felt firmer. At 8 weeks today the difference in firmness and elasticity is phenomenal. This product is okay to use around the eyes which is rare for retinoids. I have genetic eye begs and puffiness and this product has been more effective than any other I have tried. The eye area is most definitely firmer and more lifted. Major win there.This applies very easily, absorbs very quickly and though it is scented that doesn’t bother me. I have seen many reviews saying that it is sticky or greasy, not in my experience. A little bit goes a long way here (2-3 pumps) as the instructions say. Using too much will make it sticky or even greasy because of the texture of it.Also saw a lot of reviews complaining about the pump, again not in my experience, it actually works perfectly, you get to squeeze out every single drop. I am almost at the end of a second tube and no issues.Also saw a lot of reviews about the tube being small, idk. At 2-3 pumps a night the first tube lasted me 36 days. I think that’s pretty standard for this type of product that you apply to the face AND neck.Some reviewers saw no difference and I am not doubting that but as someone who does a lot of research including speaking to dermatologists, retanal works, Medik8 especially seems to have scientific evidence for its product BUT it takes time and consistency is key. For some people it will take less time and for some more. I saw a difference in firmness very quickly but the softening is wrinkles is taking more time. I truly believe this product is effective but it takes time.I highly recommend Crystal Retinal and am planning to continue using it and go up to strength 10 in a few months.I am also using several other Medik8 products and they are all great. I will however say that it’s better to purchase directly from Medik8 (sorry Amazon) because the brand offers generous points membership, deluxe samples, free gifts and very decent discounts very often.
User
Very effective
I hadn't used retinol/retinal in several months and decided to try this. Even after only two months of use, it's working well. No breaking out. No fragrance (a good thing!). Noticeable firming. It's expensive but worth it. And a little goes a long way.
User
Smooths skin texture and brings out a natural glow.
This is an excellent product that smooths the skin and brings a natural glow for men and women.
User
Little actual product
The tube was mostly empty, very little product inside tube.
User
Retinol that delivers at great price!
Great product & affordable!
User
Disappointed
I have been on tritnoin .1% for years & needed to try something stronger. I bought Medica Retinal 6 thinking it would deliver, but will be returning as it is disappointing. It is moisturizing but doesn’t tighten for more than a few minutes. Too pricey for that.
User
Product is quality. Amazon quality control is poor.
I’ve used Medik8 3 and bought 6 for the next phase. Today was the day to start….past the return window. Couldn’t get a thing to come out of the tube no matter what I tried. Very very expensive waste. Don’t buy quality products like this on Amazon. It’s a crap shoot.
User
Use as directed
Read this was a great product. Will decide in the next few months. No irritation. Feels good on the skin. Hope it works- expensive!
User
Excelente
Vale totalmente la pena. Sí ves el cambio en la piel. (:
User
Reseña
Lo compre hace 1 mes lo he usado cuando mucho 3 veces a la semana y ya no sale, por el precio realmente no vale la pena lo que dura, al parecer esta caducado y ni cuenta me había dado si da coraje la verdad
Trustpilot
3 weeks ago
1 week ago