Hazelnut Protein – increases collagen synthesis for wrinkle improvement. Revision Hydrating Serum.
Helianthus Annuus (see Sunflower Oil)
Hesperidin methyl chalcone – reduces the appearance of vascular capillaries. In
Avene Anti-rougeurs line.
Honey – antibacterial, antifungal, anti-inflammatory, restore and repair skin, control acne, wound healing. iS clinical.
Horse Chestnut – Anti-inflammatory, strengthens and tones capillaries. In Teamine Eye Complex by Revision, Sircuitskin.
Hyaluronic Acid (sodium Hyaluronate) – found naturally in the dermis, absorbs water, providing hydration and moisture without oil. Used in many Fillers, Revision Hydrating Serum, Dermalogica, iS Clinical, SkinMedica body lotion.
Hydroxyphenoxy Propionic Acid – inhibits melanin transfer in the epidermis. Helps to lighten discolored skin. Skinceuticals, Advanced Pigment Corrector.
Hydroquinone – causes necrosis or death of melanocytes in the skin resulting in skin lightening, for treatment of dark discolorations of the skin. Toxicity and ochronosis (blue-black discoloration) reported with abuse and overuse, and carcinogenicity in animal studies. Obagi, Skin Lightening Complex.