American Academy of Dermatology. https://www.aad.org/public/everyday-care/skin-care-basics/care/skin-care-in-your-40s-and-50s
Diakses pada 16 Desember 2020American Academy of Dermatology. https://www.aad.org/public/everyday-care/skin-care-secrets/anti-aging/selecting-anti-aging-products
Diakses pada 16 Desember 2020Web Md. https://www.webmd.com/beauty/features/anti-aging-routine#2
Diakses pada 16 Desember 2020Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/wrinkles/in-depth/wrinkle-creams/art-20047463
Diakses pada 16 Desember 2020Live Science. https://www.livescience.com/36720-anti-aging-products-lotions-supplements.html
Diakses pada 16 Desember 2020Huffington Post. https://www.huffpost.com/entry/the-age-you-should-start-using-anti-aging-skin-care-products_l_5d0ce8b0e4b0aa375f4b8928
Diakses pada 16 Desember 2020