SOTHYS Hydra3Ha. Hyaluronic Acid™ Intensive Hydrating Serum has the following features: Features a highly effective formula to regenerate skin and restore its moisture. Contains 1055 Boletus Extract that acts as a Hyaluronic acid booster and performs a youthfulness action. . Contains Botanical Complex that improves cellular communication. Action deep to skin to protect the epidermal stem cells to last their regeneration Up to 36% reduction of water loss. *Average tewameter measurement of 17 people.