• Dietary Supplements – 4th Edition – Mason – Pág. 37, 359, 466, 483.
• PDR for Nutritional Supplements – 2nd Edition – Pág. 631.
• Las vitaminas su importancia en la alimentación – P. Moraleda Naranjo – 1999 - Pág. 52, 86, 161, 195.
• The Healing Power of Vitamins, Minerals and Herbs – Edelberg – 1999 – Pág. 132, 133, 176, 177, 246, 247, 372, 373, 382, 383.
• Medical evidences of the therapeutic effect of edible gelatin on telogen effluvium and androgenetic alopecia in both men and women – Pam – Research and Development Aripam Medical Center, Ashdod, Israel – 2013.
• Ingestion of BioCell Collagen® - Schwartz – 2012.
• Colágeno hidrolizado oral, un complemento alimenticio indispensable para la mujer en la perimenopausa – Dra. Figueres – 2011.
• Gelatine Hydrolysates and its Health Aspects – Eggersgluss – DGF Stoess AG, Eberbach, Germany – 1999