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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
Products Discussed this 2025 Podcast Season
Recommended 30 for 30 Sunscreens 2025
Product Shoutout:
Enrichment Content:
Do We Absorb Sunscreen Filters into Our Bloodstreams?
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Skincare questions for the podcast?
By Chemist Confessions Inc.4.5
109109 ratings
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
Products Discussed this 2025 Podcast Season
Recommended 30 for 30 Sunscreens 2025
Product Shoutout:
Enrichment Content:
Do We Absorb Sunscreen Filters into Our Bloodstreams?
Follow us:
Skincare questions for the podcast?

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