Medik8 Crystal Retinal 1 - Brightening, Firming, Advanced Skin Regenerating Retinaldehyde Serum - Smoothing, Hydrating Wrinkle Repair Recipe - With Hyaluronic Acid, Glycerin, and Vitamin E - 1 oz

Product description <img alt="Medik8 - Crystal Retinal 1" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/d42d4682-b82f-43cb-9904-1e108a75fd24.__CR247,0,970,600_PT0_SX970_V1___.jpg"/> <img alt="Medik8 - Crystal Retinal 3" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/5db3807a-4980-42b8-86b7-ff8fbf9e5b05.__CR247,0,970,600_PT0_SX970_V1___.jpg"/> <img alt="Medik8 Brothers" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/16ba8bf6-e918-4ea4-bfb4-06813aa05bbb.__CR0,101,2766,2766_PT0_SX300_V1___.jpg"/> About The Founders A graduate of pharmacology and biochemistry; skincare visionary, Elliot Isaacs, launched Medik8 in 2009.

In 2011, he joined forces with his chemistry-graduate brother, Daniel, and the innovating duo quickly became known as ‘The Chemical Brothers’ for their forward-thinking skincare research.

<img alt="Medik8 Texture" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/90de852c-1030-4b01-8a16-574264e3490d.__CR185,0,600,600_PT0_SX300_V1___.jpg"/> Our Brand Values Clinical Skincare100% Vegan, Paraben & Phthalate Free, Animal Cruelty FreeCarbon NeutralFormulated and Manufactured at Medik8's owned laboratories and facilities right outside of London.

<img alt="Retinol Text" src="https://m.media-amazon.com/images/S/aplus-media-library-service-media/6af04b1b-0dc8-4378-81fd-1710327c2bdb.__CR0,74,1464,453_PT0_SX970_V1___.jpg"/> Crystal Retinal 1 Serum Crystal Retinal 3 Serum Crystal Retinal 6 Serum Crystal Retinal 10 Serum Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 4.5 out of 5 stars 4.5 out of 5 stars 4.5 out of 5 stars Price Strength 0.01% Retinaldehyde 0.03% Retinaldehyde 0.06% Retinaldehyde 0.10% Retinaldehyde Ski