This article was co-authored by Kimberly Tan and by wikiHow staff writer, Kyle Hall. Kimberly Tan is the Founder & CEO of Skin Salvation, an acne clinic in San Francisco. She has been a licensed esthetician for over 15 years and is an expert in mainstream, holistic, and medical ideologies in skin care. She has worked directly under Laura Cooksey of Face Reality Acne Clinic and studied in-person with Dr. James E. Fulton, Co-creator of Retin-a and pioneer of acne research. Her business blends skin treatments, effective products, and education in holistic health and sustainability.

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