Sulfur

INCI: Sulfur
Category: Anti-acne agent, keratolytic, antifungal
Used in: Skincare and haircare – spot treatments, masks, cleansers, anti-dandruff shampoos
Typical Usage Level (Topical):
3% – 10% in over-the-counter formulations

What This Ingredient Does

Sulfur is a time-tested dermatological ingredient used to manage both acne and common scalp concerns. It works by reducing excess oil production and promoting the shedding of dead skin cells, helping to prevent clogged pores and buildup on the skin and scalp.

Its antibacterial properties help inhibit acne-causing bacteria, making it effective for active breakouts. At the same time, its antifungal action helps address scalp conditions such as dandruff and сеbborrheic dermatitis, where yeast overgrowth plays a role.

Because of its keratolytic (exfoliating) effect, sulfur helps loosen and remove flakes on the scalp while keeping pores clear on the skin. This dual action makes it especially useful in formulations designed for oily, acne-prone skin and flaky, buildup-prone scalps.

Sulfur is often combined with ingredients like salicylic acid and zinc PCA in acne treatments, and with antifungal agents in dandruff-control formulations.

Key Benefits

Helps reduce acne and breakouts
Controls excess oil on skin and scalp
Promotes gentle exfoliation and unclogs pores
Provides antibacterial and antifungal action
Helps reduce dandruff, flakes, and scalp buildup

Who It’s Best For

Acne-prone skin
Oily or combination skin
Oily scalp and dandruff-prone scalp
Individuals with active breakouts or scalp flaking
Those looking for targeted spot or scalp treatments

Clinical Note by Dr. Su

M.D. Dermatologist

Sulfur is a well-established ingredient in dermatology for managing both acne and dandruff. It is particularly beneficial for oily skin and scalp due to its oil-absorbing and antimicrobial properties. However, it can be slightly drying or have a distinct odor, so it is best used in balanced formulations and followed with appropriate hydration for skin and scalp.

References

Gupta AK, et al.
The use of sulfur in dermatology
Journal of Drugs in Dermatology, 2004
https://pubmed.ncbi.nlm.nih.gov/15303787/

Kligman AM, et al.
Topical sulfur preparations in dermatologic therapy
Dermatologic Clinics, 2002
https://pubmed.ncbi.nlm.nih.gov/11896744/