Bio-gel bio-restorative hydrogel with psp works to revive dull, aging and sensitive skin with the effective complex, psp. psp, or processed skin proteins, is a naturally balanced blend of essential nutrients, such as growth factors, antioxidants and matrix proteins, including collagen. this powerful ingredient revives skin, causing the complexion to become softer, firmer, younger- and healthier-looking. bio-gel bio-restorative hydrogel restores a healthy, vibrant glow and tone to mature and stressed skin without the use of alcohol, oils, fragrances or colorants.