Containing Retinaldehyde, ILLUMINATE works up to 11X faster to brighten skin tone. Retinaldehyde is the most potent form of Vitamin A (Retinol) available on the market without a prescription, and allows you to enjoy visible results in as few as 2 weeks, with full results reported in 6 - 8 weeks. Safe for all skin types and tones. This product has shown to reduce hyperpigmentation (dark spots) on face, hands and bikini line (inner thighs). MOOD products are third-party lab tested for quality assurance. See this product's Certificate of Analysis here.