G.S. Cosmeceutical USA (GSC) is a custom contract manufacturer and developer of cosmeceutical skin-care products established in 1998. The company operates FDA-registered, cGMP-compliant facilities in California and specializes in anti-aging and anti-acne formulas, OTC topicals and personal-care products for humans and pets. GSC is known for its Hydroxysomes® technology, a patented micro-carrier system that improves stability and penetration of actives. It offers end-to-end services including product formulation, research and development, stability testing, private label and contract manufacturing, packaging and regulatory assistance. Product lines include cleansers, toners, serums, moisturizers, masks, acne treatments, sun care, baby and pet care products, bath & spa items and men's grooming products. The company also manufactures topical OTC drugs such as sunscreens, antiseptics and analgesics and emphasizes high active-ingredient concentrations and total skin-health treatments.