Strengthening Hair & Scalp Oil - Hair Growth Oil, Rosemary and Castor Oil, Nourishing Hair Oil

Nourish your hair from root to tip. Our new ZWS Rosemary Hair & Scalp Oil is a rich blend of six botanical oils that soothes the scalp, strengthens strands, and leaves hair soft, shiny, and visibly healthier — with none of the plastic packaging the rest of the aisle comes in.

Healthy hair starts at the scalp, and it's the part of your routine most likely to get ignored. Massage this in before you wash and rosemary and peppermint get to work at the root, waking up circulation where growth actually happens while castor and avocado oils sink into dry, brittle lengths. Ten minutes is all it takes. You'll feel the peppermint tingle immediately; the softness shows up the moment you rinse.

On the days you're not treating, a few drops through your ends does the rest — argan and jojoba smooth frizz, add shine, and seal in moisture without the greasy weight that makes most oils a once-a-week affair. Lightweight enough for fine hair, rich enough for coily, and gentle on color-treated and heat-styled hair. It arrives in a glass bottle inside a kraft box, because a product that's almost entirely plant shouldn't show up wrapped in petroleum.

Why You'll Love It

• ✨ Supports healthy hair growth and stronger-looking strands
• ✨ Nourishes and soothes dry, itchy, or flaky scalps
• ✨ Reduces the appearance of frizz and adds natural shine
• ✨ Lightweight enough for fine hair, rich enough for coily
• ✨ Works as a pre-shampoo scalp treatment or a daily finishing oil
• ✨ Vegan and cruelty free
• ✨ No synthetic fragrance — the scent is rosemary and peppermint, nothing else
  

Key Ingredients:

Rosemary Oil — The star of the blend. Studied for its effect on hair growth and long prized for stimulating circulation at the follicle.

Peppermint Oil — That signature cooling tingle, plus it helps invigorate a dull or tight scalp.

Castor Oil — Rich in fatty acids that coat and strengthen the hair shaft to help reduce breakage.

Avocado Oil — Deep moisture for dry, brittle, or color-treated strands.

How to Use:

Pre-Shampoo Scalp Treatment: Massage your desired amount into the scalp and throughout strands. Work in slow circles with firm pressure — you're stimulating blood flow to the follicle, not just spreading oil around, so take your time. Let sit for 10+ minutes, then wash as usual with your favorite shampoo bar.

Daily Hair Oil: Rub a few drops between your palms and smooth through the mid-lengths and ends of dry or damp hair.

Good For:

• Dry, itchy, or flaky scalps
• Fine, thick, straight, wavy, curly, and coily hair
• Frizzy or dull hair
• Dry or damaged ends
• Color-treated and heat-styled hair
• Anyone who wants to support healthier-looking hair without the plastic

What's included: 2oz glass bottle with dropper, in a kraft paper box.

About that dropper: It's plastic, and so is the tamper seal. We haven't found a leak-proof, plastic-free alternative that survives shipping without oil ruining the rest of your order — and we'd rather tell you that than let you find out at the bottom of a page. We're still looking. In the meantime, hang onto the dropper and reuse it with your next bottle.

End of Life: Upcycle the glass bottle (perfect for DIY oil blends, tinctures, or refills) or rinse and recycle it. Compost or recycle the kraft box. Check local guidelines for the dropper and seal.

Ingredients: Helianthus Annuus (Sunflower) Seed Oil, Persea Gratissima (Avocado) Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Ricinus Communis (Jamaican Black Castor) Seed Oil, Argania Spinosa (Argan) Kernel Oil, Tocopherol, Mentha Piperita (Peppermint) Oil, Rosmarinus Officinalis (Rosemary) Leaf Oil