025-1% significantly improves fine lines, skin texture, and pigmentation.
Start with 0.025-0.05% retinol 2x per week. Increase frequency over 8 weeks. Always use SPF during retinol use. Not suitable for pregnancy.
If you're targeting aging, this research supports adding retinol to your PM routine. Effective concentration range: 0.025–1% based on this study. Timeline to expect: 24 weeks based on study duration.
Translated from this study's findings, not a personal prescription. Pair with your existing protocol and your practitioner's guidance.
Retinoids remain the most extensively studied topical agents for skin aging. Meta-analysis of 24 randomized controlled trials confirms that topical retinol at concentrations of 0. 025-1% significantly improves fine lines, skin texture, and pigmentation.
Retinoids remain the most extensively studied topical agents for skin aging. Meta-analysis of 24 randomized controlled trials confirms that topical retinol at concentrations of 0.025-1% significantly improves fine lines, skin texture, and pigmentation. Tretinoin shows superior efficacy but higher irritation rates. Retinol requires conversion to retinoic acid in the skin, with 1% retinol achieving similar outcomes to 0.025% tretinoin after 24 weeks. Progressive introduction protocols reduce purging and irritation by 73%.
Original source →This study evaluated the safety and effectiveness of HYDRAGEL A2, an injectable medical device containing hyaluronic acid (HA), polynucleotides (PN), and niacinamide, for improving facial skin quality. These ingredients are increasingly recognized for their synergistic effects in aesthetic medicine, with HA and PN providing hydration and skin support, and niacinamide offering anti-inflammatory and antioxidant properties. A prospective, open-label clinical investigation was conducted on 42 female subjects (mean age 45 ± 1 years, Fitzpatrick skin phototypes II-V) to assess skin elasticity, hydration, and mild skin depression correction following cheek area injections.
The combination of recombinant human epidermal growth factor (rhEGF) and fractional carbon dioxide (CO2) laser therapy is increasingly used in the treatment of facial atrophic acne scars. This study aimed to systematically assess the efficacy and safety of rhEGF combined with fractional CO2 laser therapy for managing facial atrophic acne scars. PubMed, Embase, the Cochrane Library, Web of Science, CNKI (China National Knowledge Infrastructure), Wanfang, SinoMed, and VIP were searched from inception to July 29, 2025.
L-Carnitine, an amino acid derivative critical for fatty acid metabolism, exhibits anti-inflammatory, antioxidant, and cytoprotective properties, with emerging applications in dermatology. This review explores its therapeutic potential, both topically and systemically, and its role as a biomarker in various skin disorders. A systematic search of Medline, EMBASE, and PubMed (1946-January 2025) was conducted, focusing on L-carnitine and dermatologic conditions, excluding acetyltransferases, acyltransferases, breast, and genetic metabolic diseases.
This information is for educational purposes only and is not medical advice. Individual results vary. Consult a qualified dermatologist or healthcare professional for medical concerns. Full disclaimer →