Shampoo Bars 101: The Sulfate-Free, Plastic-Free Hair Trend

The shift toward solid, low-waste beauty has finally reached hair care, and a shampoo bar is usually where people start.

What Makes a Shampoo Bar "Clean"

A genuinely clean shampoo bar skips sulfates, silicones, and synthetic fragrance in favor of gentle plant-derived cleansers and nourishing oils, pressed into a solid form instead of suspended in water and preservatives.

Sulfate-Free, Plastic-Free: Why It Actually Matters

Sulfates clean effectively but can strip the scalp's natural oils, leaving hair dry and color fading faster. Going bar-form also means no plastic bottle — a single bar typically replaces two to three bottles of liquid shampoo over its lifespan.

What to Expect the First Few Washes

Hair can feel slightly different for the first wash or two as it adjusts, especially if you're coming from a sulfate-heavy formula. This is normal and usually settles within a week of consistent use, not a sign the bar isn't working.

Featured: EARTH IS... Shampoo Bar

The EARTH IS... Shampoo Bar is formulated to lather gently while skipping sulfates and plastic packaging entirely.

Getting the Best Lather and Life Out of a Bar

• Rub the bar directly between wet hands (not straight onto hair) to build lather first
• Store it on a draining dish, away from standing water, between washes
• Let it air-dry fully to extend how many washes you get from a single bar