What are the best ingredients for firming aged skin? Best peptides?
The most effective ingredients would be retinoids, niacinamide, ascorbic acid. Peptides are helpful, but their effect is less strong. These guides might be interesting for you: https://whatsinmyjar.com/resources/anti-aging/wimj-guide-for-retinoids-part-1-anti-aging
The most effective ingredients would be retinoids, niacinamide, ascorbic acid. Peptides are helpful, but their effect is less strong. These guides might be interesting for you: https://whatsinmyjar.com/resources/anti-aging/wimj-guide-for-retinoids-part-1-anti-aging