Before building a skin care routine, know which of the 16 Baumann Skin Types and sensitive skin subtypes you have. Board-certified dermatologist Dr. Leslie Baumann explains the routine steps, why products must work together, and how the 16 Skin Type Quiz builds a personalized routine using the right products from different brands. It uses the Baumann Skin Typing System described in dermatology textbooks.

Rapamycin is a new topical ingredient found originally in easter island - it is a cutting edge anti-aging technology that might make waves across the skin care industry. Learn all about it here.

Avobenzone, also known as butyl methoxydibenzoylmethane, is the main UVA filter in most oxybenzone-free chemical sunscreens sold in the United States. It was developed ...

This article explains what it means to “reset” tired or exhausted fibroblasts and why fibroblast health matters for skin longevity. Learn about the aging processes that contribute to tired fibroblasts, including cellular senescence, mitochondrial dysfunction, impaired autophagy, DNA damage, lysosomal function, oxidative stress, and mTORC1 signaling.

This article explains what tired or exhausted fibroblasts are and what it means to “reset” them. Learn how cellular senescence, mTORC1, autophagy, mitochondrial function, DNA repair, and epigenetic aging affect fibroblasts, and how emerging skincare ingredients may target these processes to support healthier, younger-functioning skin cells.

ISDIN is one of the most popular skin care brands in the world. Dermatologist, Dr. Leslie Baumann, looks into the science and history in today's skin care spotlight blog!

RLX-201 (demethoxyrapamycin) is an exciting new ingredient in Re-Q that targets mTORC1, a pathway involved in cellular aging. Designed to give aging fibroblasts a temporary “rest,” it may help reset their activity and help other anti-aging ingredients work better afterward. Early results are promising, but human clinical data remain limited.

Why are people putting diaper rash cream on their faces as skin care? I'm a dermatologist, and I had to know - here's everything to know about this trend.

Do You Treat Dark Spots Only or the Entire Face? The Answer Depends on the Ingredient I was recently asked a very interesting question by one o...

You might have seen hypochlorous acid on your skin care's ingredient label - but what does it do? Find out the science of this common ingredient in skin care products!

CO2Lift is a popular face mask brand with unique products designed to use CO2 to energize and treat the skin. Find out their history and science in today's blog!

Rationale Skin Care is an award winning line with options for every skin type. Find out about their history and science here!