What's Actually in Your Sunscreen (And What to Use Instead)
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What's Actually in Your Sunscreen (And What to Use Instead)

What's Actually in Your Sunscreen (And What to Use Instead)

Sunscreen season is officially here, and it may be time to take a hard look at the SPF you’re still reaching for out of habit.

Here’s the uncomfortable truth: some of the most popular sunscreens on the market contain ingredients that are actively working against the hormonal health you’ve been working so hard to protect.

But there’s good news! Making the swap is way easier than you think, and we’ve already done the vetting for you.

The Problem With Conventional Sunscreen

Most mainstream sunscreens fall into one of two categories:

  • Chemical

  • Mineral

Chemical sunscreens work by absorbing UV rays and converting them to heat. Mineral sunscreens (the ones we’re here for) work by sitting on top of the skin and physically deflecting UV radiation.

The issue isn’t the sun protection. It’s what chemical sunscreens are made of, and what those ingredients are doing once they get into your body.

A few years ago, the FDA reviewed 16 common sunscreen active ingredients. Of those 16, only zinc oxide and titanium dioxide were classified as “Generally Recognized as Safe and Effective” (GRAS). The remaining chemical UV filters (including the ones you’ll find in almost every drugstore sunscreen) were flagged as needing more safety data before the FDA could confirm their safety.


That’s not a technicality. That’s the FDA saying that they don’t have enough evidence to call these safe. 

The Ingredients to Stay Away From

Next time you’re holding a bottle of sunscreen, look for these ingredients that you definitely want to skip.

Oxybenzone

This is the one researchers are most concerned about, and for good reason. Studies show that oxybenzone has endocrine-disrupting properties at doses typical of sunscreen use, meaning the amount most people apply on a regular beach day.

It’s been detected in:

  • Human blood

  • Urine

  • Breast milk

  • Amniotic fluid

Why is it bad? Because it can:

  • Mimic estrogen

  • Interfere with testosterone production

  • Disrupt adrenal hormones

Many places including Hawaii, Key West, Palau, and Aruba have all banned it from their waters due to its devastating effects on coral reefs, which is also a pretty clear signal about what it does in biological systems more broadly.

Octinoxate (Octylmethoxycinnamate/OMC)

This is the most widely used UVB filter in conventional sunscreen today. Research shows octinoxate can interfere with endocrine disruption, blocking normal androgen and progesterone signaling. Additionally, estrogenic and potential thyroid-disrupting activity have been documented in multiple studies. 

This ingredient has also been detected in human breast milk, and it’s also on the same ban list as oxybenzone in Hawaii and beyond. 

Homosalate

This common UVB filter acts like estrogen in the body. In 2021, the European Commission’s Scientific Committee on Consumer Safety concluded that homosalate is not safe at the concentration currently used in sunscreens.

In vitro research has also shown it may affect thyroid gene expression and impair sperm cell function.

One particularly alarming note is that studies show homosalate can actually increase the absorption of other chemicals (including pesticides) through the skin. This makes the toxic load even greater!

Octocrylene and Avobenzone

Both of these have shown up in FDA-backed testing with plasma levels exceeding the agency’s safety threshold after just one single full-body application.

A 2020 clinical trial found that all six major chemical UV filters (including octocrylene and avobenzone) were absorbed into the bloodstream above the 0.5 ng/mL threshold that the FDA set as needing further safety evaluation.

Avobenzone in particular has shown the ability to block testosterone effects at low doses in cellular studies.

Why This Matters More Than You Might Think

Sunscreen is one of the highest-exposure products in your routine, especially in summer. You apply it from head to toe, often multiple times a day, frequently on children, and sometimes daily from May through September.

That’s a significant toxic load hitting your endocrine system at its most vulnerable.

And the endocrine system isn’t just about hormones in isolation. It’s the master regulatory system for your:

  • Mood

  • Metabolism

  • Menstrual cycle

  • Fertility

  • Thyroid

  • Sleep

  • Stress response


When you’re already doing everything right (eating clean, ditching inflammatory oils, swapping your candles), leaving a hormone-disrupting sunscreen in your routine is like plugging one hole in a boat while leaving another open.

The standard argument is: “Well, the research is mostly in animals.” And that’s partially true. But here’s the Live Healthillie standard: when the FDA itself can only confirm two ingredients safe, and the rest are under active safety review, we don’t wait. We swap.

So What Should You Use?

The answer is simple: mineral sunscreen with zinc oxide and/or titanium dioxide as the only active ingredients.

These are the only two sunscreen ingredients the FDA has formally designated as GRAS.

Unlike chemical filters, zinc oxide and titanium dioxide sit on the skin’s surface and physically reflect UV radiation rather than absorbing into the body. Research consistently shows that these mineral particles do not penetrate living tissue. They do their job on the outside, where sunscreen is supposed to work.


Zinc oxide is particularly impressive. It:

  • Provides true broad-spectrum UVA and UVB protection in a single ingredient

  • Is anti-inflammatory

  • Is gentle enough for the most sensitive skin, including babies and pregnant women

Quick note: Even with clean minimal sunscreens, we suggest you avoid spray and powder formulas containing titanium dioxide. Inhaling this chemical is a concern. Stick to lotions, sticks, and cream formulas.

The Live Healthillie-Approved SPF Lineup

We’ve done the research so you don’t have to. Every sunscreen in the Live Healthillie shop is mineral-based and free from the chemical filters listed above.

Here are our favorites:

Raw Elements SPF 30 Face + Body Lotion: A zinc oxide-based formula made with certified organic ingredients. Water resistant, reef-safe, and actually good for your skin, not just protective of it. Perfect for the whole family.

Raw Elements SPF 30 Face Stick: The stick format we reach for on the go, at the beach, or for easy reapplication over makeup. Same clean formula, zero mess.

Sun Wrangler Daily Mineral Sunscreen SPF 45: Formulated with an exclusive antioxidant blend plus turmeric, this zinc oxide-based SPF 45 protects, moisturizes, and restores even the most sensitive skin. This is the one for daily wear when you want your sunscreen to actually do something good for your skin, not just protect it.

Sunny Sailor Captain’s Classic Clear Mineral Lotion SPF 40: This formula is simple: 22.5% non-nano zinc oxide, certified organic chamomile, beeswax, sunflower oil, sea buckthorn, olive oil, shea butter, and calendula. Not a single harsh chemical or synthetic preservative in sight.

You won’t find any oxybenzone, octinoxate, homosalate, or anything else on the “avoid list.” Just clean, effective sun protection — the way it should be!

Sun protection and hormone protection are not mutually exclusive. You can have both! Swap the chemical sunscreen for a clean mineral one. Read the label. Look for zinc oxide as the active ingredient. And know that when you’re shopping at Live Healthillie, we’ve already screened everything so you don’t have to read an ingredient label ever again (unless you’re curious!).

The sun is good for you. Your sunscreen should be too. 

by Leslie K. Hughes – June 18, 2026