Acne vulgaris
Not recommended
Chlorophyll has received strong TikTok marketing as a «natural acne remedy», especially «liquid chlorophyll drops» taken internally. The claim has a weak but non-zero base. The McCook open-label pilot (J Drugs Dermatol 2015) in 10 patients with mild-to-moderate facial acne used a chlorophyllin-copper gel topically twice daily for 3 weeks and reduced the inflammatory lesion count and pore size. The Stephens RCT (J Drugs Dermatol 2015) in 30 patients with photoaged skin used sodium-copper-chlorophyllin 0.066% gel twice daily for 8 weeks and improved wrinkle and pigmentation scores versus vehicle. These are small manufacturer-sponsored pilots without comparison to standard therapy. Guidelines 2024 list as first-line acne treatment topical retinoids (adapalene, tretinoin), benzoyl peroxide, azelaic acid, and clindamycin combined with benzoyl peroxide; in moderate-severe disease – oral antibiotics (doxycycline, minocycline) or combined oral contraceptives in women; in severe nodulocystic acne – isotretinoin. Chlorophyllin appears in guidelines neither as first-line therapy nor as a proven alternative. Oral «liquid chlorophyll» for acne has not been studied in humans: systemic bioavailability is below 1% and the pigment does not reach the sebaceous gland. The «cleared in a week» effect in TikTok videos is explained by general hydration (a bottle of chlorophyll water), not direct action on the sebaceous gland. Topical chlorophyllin gel as a cosmetic is safe to try but not as a replacement for prescription therapy. In moderate-severe acne, see a dermatologist: months of delay with TikTok remedies lead to scarring and post-acne hyperpigmentation that are harder to treat later.
Sources
- American Academy of Dermatology: Guidelines of care for the management of acne vulgaris (2024)
- AEDV: Academia Espanola de Dermatologia y Venereologia – Guias clinicas (2024)
- J Drugs Dermatol (McCook et al.): Topical chlorophyllin-copper complex in the treatment of mild-to-moderate facial acne and large pore size – open-label pilot (2015)
- J Drugs Dermatol (Stephens et al.): A randomized, double-blind, placebo-controlled trial of topical sodium copper chlorophyllin in photoaged skin (2015)