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Literatura
- Rawlings, A. V. »The Stratum Corneum and Aging.« Springer eBooks, 2016, pp. 67–90. https://doi.org/10.1007/978-3-662-47398-6_7.
- Ludmann, Paula, MS. »How To Care for Your Skin in Your 60s and 70s.« American Academy of Dermatology Association, 8. september 2021.
- »Wrinkles.« Cleveland Clinic, 27. julij 2022. Vir: IQVIA, anketa ProVoice, ocenjevalno obdobje je tekoče 12-mesečno obdobje.
- »Do You Need Peptides in Your Skin Care Products?« Cleveland Clinic, 17. junij 2025, health.clevelandclinic.org/peptides-for-skin.