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Researchers found that scrotal skin is 42x more absorbent than the skin on your forearm. It is one of the most permeable areas on the entire male body. (Source: Feldman & Maibach, J Invest Dermatol 48:181-183) Now look at what is pressing against it for 16 hours a day. Your polyester boxers contain BPA, phthalates, and PFAS. These are not trace chemicals. BPA has been found at up to 19x above safety limits in polyester garments. (Source: PlanetCare Research) And they do not just sit on the surface. Researchers proved that up to 39% of hazardous chemicals in polyester migrate directly into sweat. Your sweat becomes the delivery system. (Source: Chemosphere, 2024) Once absorbed through scrotal skin, these chemicals go straight into your bloodstream. BPA alone has been shown to reduce testosterone production in Leydig cells by up to 39%. (Source: ResearchGate, 2017) Every time your phthalate exposure doubles, your testosterone drops by 7.72%. (Source: PMID 31996892) This is not a long-term hypothetical. This is happening right now. Every time you sit down. Every time you sweat. Every time your body heats up. The chemicals move faster, absorb deeper, and accumulate more. Men in the highest BPA exposure group had a 4x higher risk of erectile dysfunction. (Source: PMID 29936757) Your underwear is not neutral. It is the single closest fabric to the most chemically absorbent skin on your body. And if that fabric is polyester, it is delivering endocrine disruptors directly into your system every single day. PRIMALS Organic Cotton Boxers are made from 100% GOTS Certified Organic Cotton. Zero polyester. Zero BPA. Zero phthalates. Zero microplastics. Zero synthetic dyes. Nothing touches your skin except clean, certified organic fiber. ✅ 100% GOTS Certified Organic Cotton. Zero synthetics. ✅ Zero BPA, phthalates, PFAS, or microplastics. ✅ Non-toxic, azo-free dyes. OEKO-TEX certified. ✅ Never superwashed. No hidden chemical coatings. ✅ Breathable. Temperature regulating. Spacious fit. ✅ Trusted by 100,000+ customers. 🤝 9-Boxer Bundle. BEST VALUE. SAVE $198. 🤝 +1 FREE 3-Pack of PRIMALS Boxers 🤝 +1 FREE PRIMALS Blue Light Blocking Glasses 🤝 +1 FREE PRIMALS Body Wash 🤝 +1 FREE Testosterone Maximization Guide 🤝 FREE Shipping Your scrotal skin absorbs 42x more than your forearm. What is pressed against it right now matters more than almost anything else you put in or on your body. Stop feeding it plastic. Tap below.