• Stem shampoo bar in coconut hinoki scent with recyclable cap and coated in beeswax to prevent dissolving
  • Hand holding cylindrical plastic-free Swell Labs Stem shampoo bar with a smooth purple-black surface and compostable lid
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Swell Labs

Stem Shampoo & Conditioner Bar

Stem Shampoo & Conditioner Bar

$24.99 USD
$24.99 USD
Sale Sold out
Shipping $6.95 | FREE over $50
  • Zero Sulfates, Parabens, Silicones, or Plastic
Scent
Our Testing Verdict: Professional Liquid Performance in a Solid Bar
After six months of daily use, we are still on our first Stem bar - it truly is the longest-lasting shampoo we’ve encountered. The rich, effortless lather defies the "natural bar" stereotype, rinsing away cleanly while leaving hair feeling balanced and soft. We especially love the patented beeswax shell, which prevents the bar from getting mushy or messy. If you have dry or color-treated hair, we recommend pairing it with our Fillaree Conditioner for the perfect hydrated finish.

Why We Love It:
  • Lathers Effortlessly: Defies the flat, hard-to-use stereotype of natural bars by building a creamy, thick lather in seconds.
  • Patented Beeswax Shell: Rejects water logging. Water beads straight off the sides, keeping the bar dry and comfortable to grip.
  • All-in-One Performance: Gently cleanses and hydrates every strand without over-stripping, leaving hair soft and manageable with no itchy scalp.

Dimensions:
2" L x 2" W x 3" H | 4.6 oz.

Ingredients:
Coconut Hinoki: Sodium Cocoyl Isethionate, Cocoa Butter, Activated Charcoal, Hydrolyzed Rice Protein, Pro-Vitamin B5, Cetyl Alcohol, Guar Gum, Fragrance Oil from Plant Oils

Clear: Sodium Cocoyl Isethionate, Cocoa Butter, Hydrolyzed Rice Protein, Pro-Vitamin B5, Cetyl Alcohol, Guar Gum

What’s Included:
1 Stem Shampoo & Conditioner Bar (4.6 oz) with Spruce Wood Base & Travel 

Choose from two varieties:

  • Coconut Hinoki: Creamy coconut, fresh cypress, and vanilla. Best for normal to thick hair.
  • Clear: Truly unscented and fragrance-free. Best for sensitive scalps.

Sustainability & Certifications

Zero-Waste & Plastic-Free Innovation

Every year, millions of plastic shampoo and conditioner bottles wind up in landfills and oceans. Stem completely eliminates bottle clutter and synthetic chemical runoff.

  • 7 Natural Ingredients: Made in California using a minimalist, plant-derived formula completely free of toxins, silicones, and synthetic additives.
  • 100% Biodegradable & Compostable: The entire bar naturally degrades without leaving chemical traces. The protective spruce wood-based cap and base are fully backyard compostable.
  • Waterless Concentration: By stripping out the water weight found in liquid formulas, one single bar replaces 3 to 4 plastic bottles, saving resource strain during shipping.

Care & How To Use

How to Wash & Grip

  • Application: Thoroughly wet your hair and the bar. Rub Stem directly onto your scalp or between your hands to generate a rich, luxurious lather, then massage through your hair.
  • Ergonomic Grip: Remove the spruce wood cap from the top and snap it onto the bottom base while showering. This functions as an easy-to-hold handle that won't slip out of your hands.

Storage & Travel

  • Storage: Always store Stem upright on its solid wood base between washes. The patented beeswax shell prevents the sides from melting or turning into mush.
  • Travel Mode: When hitting the gym or traveling, simply snap the cap back onto the top of the bar to create a water-tight seal that protects your bags from messy leaks.
  • The Perfect Finish: If your hair is naturally very dry, coarse, or chemically color-treated, we highly recommend pairing your wash with our Fillaree Conditioner for an extra boost of hydration.

FAQs

Will this shampoo bar cause scalp irritation or itching?

No. Unlike 10 to 20 other natural shampoo bars we personally tested that triggered scalp itching, Stem's minimalist formula is explicitly designed to be non-irritating. The unscented "Clear" variety is specifically formulated for highly reactive or sensitive scalps.

How does a single bar manage to last for months?

Stem is an ultra-concentrated, waterless formula that delivers up to 120 full washes per bar. Because the formula is protected by a patented beeswax shell that repels water logging, the interior active ingredients won't melt or disintegrate down your shower drain between uses.

Does it work well on long or thick hair types?

Yes. Even if you have very long or thick hair, the formula builds an effortless, rich lather that completely matches the performance of traditional liquid shampoos. It glides through long strands smoothly without causing tangles or heavy product buildup

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