@shreddedsages's shower water testosterone claims, fact-checked

What does this testosterone coach actually claim?

Nathan Sages tells his 702K viewers that shower water and bar soap can "significantly" decrease testosterone levels. He claims chlorinated shower water absorbs through skin and lowers testosterone, while soap ingredients like sulfates and fragrances harm testicles.

The video pushes viewers toward his coaching services with promises of "increasing your test more" through unspecified product switches. It's classic fear-based marketing targeting men worried about their hormone levels.

Does chlorinated shower water actually lower testosterone?

There's no credible evidence that chlorinated tap water meaningfully affects testosterone through skin absorption during showers. The skin barrier limits chlorine penetration, and typical shower exposure (5-10 minutes) involves minimal absorption.

One small study (Villanueva et al., Environmental Health Perspectives, 2007) examined chlorinated pool water exposure and found possible associations with hormone changes. But this involved swimmers spending hours weekly in heavily chlorinated pools, not daily showers with much lower chlorine concentrations.

The dermatological effects Sages mentions are real. Chlorinated water can dry skin. But there's a massive leap from "dry skin" to "lower testosterone" that he doesn't support with evidence.

What about soap ingredients harming testosterone?

Some research has examined endocrine-disrupting chemicals in personal care products. A study by Meeker et al. (Environmental Health Perspectives, 2011) found associations between phthalates in fragranced products and altered hormone levels in men.

However, these studies typically look at chronic exposure to multiple products over time, not just bar soap. The research focuses on specific chemicals like certain phthalates and parabens, not broad categories like "sulfates and fragrances."

Sages makes sweeping claims about "crap that is terrible for your balls" without specifying which ingredients or citing any research. That's not how endocrine disruption works. The dose makes the poison, and context matters enormously.

What's the real story on environmental factors and testosterone?

Testosterone levels have declined over decades, with multiple studies documenting this trend. Travison et al. (Journal of Clinical Endocrinology & Metabolism, 2007) found testosterone dropped about 1% annually in American men from 1987-2004.

Environmental factors likely contribute, but the picture is complex. Obesity rates, sleep patterns, stress levels, and sedentary lifestyles all play roles. Focusing solely on shower products misses the forest for the trees.

If you're genuinely concerned about low testosterone, get tested. Normal ranges are 300-1000 ng/dL, and symptoms include fatigue, decreased libido, and muscle loss. A qualified healthcare provider can evaluate whether treatment makes sense.

The coaching pitch problem

Notice how Sages creates fear about common products, then immediately offers his coaching services. This is textbook supplement industry marketing.

Real hormone optimization involves evidence-based approaches: adequate sleep (7-9 hours), resistance training, healthy body weight, and stress management. You don't need a "testosterone coach" to implement these basics.