Reveal younger-looking skin with just 1 tube of Crystal Retinal. Our iconic vitamin A night serum is clinically proven to visibly smooth stubborn wrinkles, brighten dark spots, decongest and firm your skin - without irritation. [1] Crystal Retinal contains retinAL; a next-generation vitamin A which acts 11x faster than standard retinOL. [2] And, unlike others, our patented retinal stability system ensures unmatched retinal potency and effectiveness until the very last drop. It's no wonder Crystal Retinal is the UK's No. 1 dermatological face serum. [3] Only at Medik8, you can ladder up your visible age-defying results over time with Crystal Retinal's 5 progressive strengths. Offering 0. 01% - 0. 2% retinaldehyde, there's a strength for everyone; from very sensitive skins to expert users. Key Benefits: Fast Wrinkle Reducing Power: See clinically proven wrinkle reduction with just 1 tube* Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks. Professional-Grade Results: Retinaldehyde is proven to work up to 11 times faster than standard retinol* - so you can see results sooner *G. Siegenthaler et al. , Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378 Radiant, Youthful Skin: Delivers remarkable visible improvement in texture, brightness, firmness & clarity Effective Results Until the Last Drop: Thanks to Medik8's patented stability complex Customize Your Regimen With 5 Progressive Strengths: A retinal strength for beginners to expert users - even sensitive skin [1] Proven via independent clinical study on Crystal Retinal 6. Tested on 33 participants over 12 weeks. [2] G. Siegenthaler et al. , Retinol and retinal metabolism, Biochemical Journal, 1990, 268, pp 371-378 [3] Source: Circana (UK) Ltd, Prestige Beauty Retail tracking / Feb 2023 to Jan 2024 / prestige face serum / Dermatologist Brand attribute / Dermatologist Brand is defined as a brand that has identified itself as (i) founded or developed by a dermatologist and/or (ii) is dermatologist recommended / franchise line / value & unit sales. To verify visit: https://us. medik8. com/pages/circana-group-claim-letters Awards: Women's Wear Daily: Beauty Inc's 100 Greatest Skin Care Products Of All Time 2024 | Medik8 Crystal Retinal 24, 30 ml | Dermstore