Pure n' Bio Blogs

SLS and SLES are the lab benchmark for skin irritation, and SLES production can leave behind 1,4-dioxane, a possible carcinogen. Here is what sulfates really do to your hair and scalp, why gentle plant-sugar (APG) foams are different, and how certified-organic, sulfate-free shampoo cleans without the harshness.

PEG-based and "-eth" cleansing agents are made by ethoxylation, a process that can leave behind 1,4-dioxane — a contaminant the IARC classifies as Group 2B, possibly carcinogenic to humans. Here is what that means for your face wash, and why plant-derived APG surfactants offer a cleaner way to cleanse.

Long-wear foundations and waterproof mascaras often owe their staying power to PFAS — synthetic "forever chemicals." A peer-reviewed study found high fluorine in 56% of foundations tested, yet almost none listed PFAS on the label. Here is what they are, why they matter, and how certified-organic makeup gives you wear without them.

An FDA-led study found oxybenzone is absorbed into the bloodstream within two hours and far exceeds the agency's safety threshold. Here is what that means for pregnancy, and why certified-organic mineral filters are the safer answer.

One word on your label — "parfum" — can legally stand in for dozens of undisclosed chemicals, including phthalates linked to hormone disruption. Here is how the loophole works, what the science says, and why certified-organic formulas are the cleaner answer.

Researchers have linked some phthalates and parabens found in conventional cosmetics to earlier puberty in girls, and adolescence is a sensitive endocrine window. Here is what the peer-reviewed studies actually found, and how certified-organic makeup helps you simplify exposure.

Parabens are preservatives that can weakly mimic estrogen. The EU banned five of them outright and capped two more. Here is what that means for your skincare — and why certified-organic formulas use zero.

Phthalates and parabens common in conventional makeup are associated in peer-reviewed research with reduced fecundity and lower ovarian reserve. Here is what the science actually says about teenage cosmetic use and reproductive health, and how certified-organic makeup helps families lower the exposure.