The next generation of retinoid science — without the irritation tax. Retinaldehyde (the active in this collection) sits one conversion step closer to retinoic acid than retinol does, meaning real clinical strength at meaningfully lower irritation. Stabilized inside Hydrinity's biomimetic exosome and paired with Supercharged Hyaluronic Acid, it's tolerable for skin that has historically failed retinol.