Retinaldehyde cream shows promise for smoother, firmer skin

This study tested whether a retinaldehyde cream (a form of vitamin A) can improve signs of aging skin in women aged 30 to 60. Fifty-six women applied a stronger cream (0.1%) to one side of their face and a weaker cream (0.05%) to the other side every evening for 24 weeks. Researchers measured skin hydration, oiliness, firmness, wrinkles, and color at the start, after 12 weeks, and after 24 weeks to see if the creams made a difference.