If you've ever flipped over your shampoo bottle and tried to read the ingredient list, you know the feeling — a wall of unpronounceable chemicals that leaves you wondering what exactly you're putting on your scalp every single day.
The truth is, many conventional shampoos contain ingredients that research has linked to hormone disruption, scalp irritation, and long-term health concerns. The good news? Making your own natural liquid shampoo is easier than you think — and if DIY isn't your thing, we've rounded up three genuinely clean options you can shop right now.
What the Research Says About Conventional Shampoo Ingredients
Before we get to the recipe, here's why it matters.
1. Sulfates and Scalp Disruption
A study published in the Journal of the American College of Toxicology found that sodium lauryl sulfate (SLS) — one of the most common shampoo ingredients — can cause significant irritation to skin and mucous membranes, and may penetrate the skin barrier and accumulate in tissues over time. Repeated exposure has been linked to scalp inflammation, hair follicle damage, and increased sensitivity. Read the study →
2. Parabens and Hormone Disruption
Research published in the Journal of Applied Toxicology detected parabens — preservatives found in most conventional shampoos — in human breast tissue samples. Parabens are known endocrine disruptors that mimic estrogen in the body, raising concerns about their role in hormone-related health issues with long-term exposure. Read the study →
DIY Natural Liquid Shampoo Recipe
This simple recipe uses clean, plant-based ingredients that gently cleanse without stripping your scalp's natural oils.
What You'll Need:
- Dr. Bronner's Pure-Castile Liquid Soap, Baby Unscented (32 oz) — our top pick, Regenerative Organic Certified and perfect for sensitive scalps
- 1/4 cup distilled water
- 1 teaspoon fractionated coconut oil or argan oil
- 1 teaspoon vegetable glycerin
- 10–15 drops of your favorite essential oil (lavender, rosemary, or peppermint work great)
- Amber glass pump bottle with waterproof labels — we love this 2-pack with pump and labels included!
Instructions:
- Combine all ingredients in your bottle.
- Gently swirl to mix — don't shake vigorously or it will foam up.
- Use 1–2 pumps per wash, lather well, and rinse thoroughly.
- Store at room temperature and use within 4–6 weeks.
Tips:
- Add a few drops of rosemary essential oil to support scalp health and hair growth.
- If your hair feels waxy after switching, give it 2–3 weeks to adjust — this is normal as your scalp rebalances.
- Follow with an apple cider vinegar rinse (1 tablespoon in 1 cup water) to restore pH and add shine.
Not Into DIY? Here Are 3 Clean Shampoos We Love
No judgment — sometimes you just want to grab a bottle and go. These three picks are genuinely clean, free from sulfates and parabens, and available on Amazon.
INNERSENSE Organic Beauty Natural Hydrating Hairbath Shampoo (10oz)
If you want the gold standard of clean haircare, INNERSENSE delivers. This certified organic shampoo is sulfate-free, cruelty-free, and formulated with nourishing botanicals that leave your hair clean, soft, and healthy.