21:26 19/04/2025
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Nguồn tham khảo

1. L-Cysteine benefits, supplement dosage, foods and risks – Dr. Axe. (2019, December 20). Dr. Axe. https://draxe.com/nutrition/l-cysteine/

2. Which vitamin helps whiten the skin? 10 extremely POPULAR, AFFORDABLE vitamin types for skin whitening. (n.d.). https://mytour.vn/vi/blog/bai-viet/which-vitamin-helps-whiten-the-skin-what-s-the-perfect-choice-for-your-skin.html

3. Svachula, A. (2024, June 26). The skincare benefits of vitamin C. Health. https://www.health.com/vitamin-c-skincare-8423238

4. Foley, M., & Foley, M. (2022, April 30). The best vitamins for skin lightening and how to use them. Pierre Michel Beauty. https://www.pierremichelbeauty.com/vitamins-for-skin-lightening/

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