In the world of retinoid technology, Rare Retinal Serum is Hale & Hush’s “pinnacle of perfection.” Featuring IconicA®, the latest optimal (and most biologically available) form of Vitamin A, merged with premier anti-glycation ingredients, this serum succeeds supremely in anti-wrinkle, anti-redness and pro-radiance results without any of the typical negative side effects of other retinoids, such as retinol.