Complex sentence: It is also purported to result in increased synthesis of collagen, keratin, involucrin and flaggrin, and may also, according to a cosmetic company, be useful for reducing skin hyperpigmentation (dark acne marks), increasing skin moisture and reducing fine wrinkles.
Split into simpler sentences: It is also purported to result in increased synthesis of collagen, keratin, involucrin and flaggrin. According to a cosmetic company, it may be useful for reducing skin hyperpigmentation (dark acne marks), increasing skin moisture and reducing fine wrinkles.