доказано клиническими исследованиями In fact, two studies have demonstrated the effectiveness of topical 0.1% retinaldehyde combined with 6% glycolic acid in treating acne. Also, there is evidence that retinaldehyde possesses some antimicrobial activity against P. acnes, the bacteria involved in the development of acne. In fact, Dr Pechere an co-workers from Geneva University Hospital, Geneva, Switzerland showed that retinaldehyde is a much stronger antibacterial that either retinol or retinoic acid (published in the journal Dermatology in 2002)