Uploaded October 2025 | Updated September 2026, 41 minutes ago

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We take a deep dive into the science behind Sulfur, a very old and historically prevalent ingredient for acne. We discuss its nonmetal clay origins and characteristic scent, often described as rotten eggs , or like "if a clay farted". The episode covers its classification as an OTC acne ingredient , its proposed catalytic and oil-absorbing mechanisms , and the challenges in its topical formulation, such as particle size. We also look at old-school research, including a study on 10% Sulfur + 4% Niacinamide drying lotion , and offer realistic expectations: Sulfur is best used as a spot treatment for quick fixes, not for long-term overall breakout reduction

00:00 | Welcome to Chemist Confessions – Skincare & Sulfur Deep Dive
00:39 | Why Is Sulfur Considered a Classic Acne Ingredient?
01:05 | What Exactly Is Sulfur in Skincare?
02:08 | Sulfur Uses Beyond Acne – Dandruff, Fungal Infections & More
03:38 | Why Particle Size Matters in Sulfur Formulations
05:59 | Pro Tips: Using Sulfur & Specialist Products for Oily Skin
06:35 | How Sulfur Works for Acne – Cell Turnover, Oil Absorption & Antimicrobial Benefits
11:08 | Is Sulfur Just a Quick Fix or a Long-Term Acne Solution?
12:24 | Sulfur Drying Lotions – Marketing vs. Science
25:29 | Downsides, Irritation Risks & Final Thoughts on Sulfur in Skincare

Products Discussed this 2025 Podcast Season
*a small portion of your purchase through these links goes to feeding a chemist.
shopmy.us/collections/1280514

Recommended 30 for 30 Sunscreens 2025
*a small portion of your purchase through these links goes to feeding a chemist.
shopmy.us/collections/1766357

Product Shoutout:
Blank Slate Gentle Gel Cleanser
chemistconfessions.com/products/blank-slate-cleanser

Enrichment Content:
Sunscreen Layering Guide
youtube.com/watch?v=IQ0Dlb0WXvc

Do We Absorb Sunscreen Filters into Our Bloodstreams?
chemistconfessions.com/blogs/controversy-corner-do-we-absorb-sunscreen-filters-into-our-bloodstreams

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