Gillbro J.M, Olsson M.J. The melanogenesis and mechanisms of skin‐lightening agents – existing and new approaches. Int J Cosmeti Sci 2011; 210-221.
Zaid AN, Ramahi R, Depigmentation and Anti-aging Treatment by Natural Molecules. Pharmacy Department, Faculty of Medicine and Health Sciences. 2019; 25(20):2292-2312.
Hu DN. Methodology for evaluation of melanin content and production of pigment cells in vitro. Photochem Photobiol. 2008; 84(3):645.
Janney, Manasa S., et al. “A randomized controlled study comparing the efficacy of topical 5% solution versus 3% hydroquinone cream in melasma.” Journal of cutaneous and aesthetic surgery 12.1 (2019): 63.
Draelos ZD, et al. (2006). The effect of 2% niacinamide on facial sebum production.Journal of Cosmetic and Laser Therapy, 8(2), 96–101. DOI: 10.1080/14764170600717704. PMID: 16766489.
Navarrete-Solís J, et al. (2011). A Double-Blind, Randomized Clinical Trial of Niacinamide 4% versus Hydroquinone 4% in the Treatment of Melasma.Dermatology Research and Practice, 2011, 379173. DOI: 10.1155/2011/379173. PMID: 21822427 (PMC3142702).
Hakozaki T, et al. (2002). The effect of niacinamide on reducing cutaneous pigmentation and suppression of melanosome transfer.British Journal of Dermatology, 147(1), 20–31. DOI: 10.1046/j.1365-2133.2002.04834.x. PMID: 12100180.
Bissett DL, et al. (2005). Niacinamide: A B vitamin that improves aging facial skin appearance.Dermatologic Surgery, 31(s1), 860–865. DOI: 10.1111/j.1524-4725.2005.31732. PMID: 16029679.
Double-blind, split
Journal of Cosmetic Dermatology, Volume 11 (4) – Dec 1, 2012, Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
Dermatologic Surgery, Mar 1, 2002, Double‐Blind, Half‐Face Study Comparing Topical Vitamin C and Vehicle for Rejuvenation of Photodamage
Barnet Products Corp, Stable forms of Vitamin C, Technical Bulletin, 2001
Journal of Ethnopharmacology, April 2014, Are plants used for skin care in South Africa fully explored?
Kwak HS, et al. (2007). Improvement of naturally aged skin with vitamin A (retinol).Archives of Dermatology, 143(5), 606–612. DOI: 10.1001/archderm.143.5.606.
Randhawa M, et al. (2015). One-year topical stabilized retinol treatment improves photodamaged skin in a double-blind, vehicle-controlled trial.Journal of Drugs in Dermatology, 14(3), 271.
Zasada M, et al. (2020). Randomized parallel control trial checking the efficacy and impact of two concentrations of retinol in the original formula on the aging skin condition: Pilot study.Journal of Cosmetic Dermatology, 19(2), 437–443. DOI: 10.1111/jocd.13040.
MB Taylor, Cosmetic Dermatology, 1999, Summary of mandelic acid for the improvement of skin conditions
Dermatologic Surgery, Jan 1, 2009, Glycolic Acid Peels Versus Salicylic–Mandelic Acid Peels in Active Acne Vulgaris and Post‐Acne Scarring and Hyperpigmentation: A Comparative Study
International Journal of Cosmetic Science, Dec 1, 2010, Comparative in vivo study of the efficacy and tolerance of exfoliating agents using reflectance spectrophotometric methods
Przegląd Dermatologiczny 2015/4, Evaluation of the efficacy and tolerability of mandelic acid-containing cosmetic formulations for acne skin care