A brown glass dropper bottle labeled Hair Therapy Strengthen & Grow Hair Serum sits next to its green and white box, which highlights argan oil, vitamin E, and pure essential oils as ingredients. A brown glass dropper bottle labeled Hair Therapy Strengthen & Grow Hair Serum stands next to its green and white box packaging. The box highlights ingredients: argan oil, vitamin E, and pure essential oils. A young woman with long, wavy hair stands against a beige background, holding a small dropper bottle. She raises one arm over her head and looks upward, with light and shadow patterns on her face. Text on a green background about 3,000 banned ingredients and a higher standard for home products.
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A brown glass dropper bottle labeled Hair Therapy Strengthen & Grow Hair Serum sits next to its green and white box, which highlights argan oil, vitamin E, and pure essential oils as ingredients.

Plant Therapy Hair Therapy Strengthen & Grow Hair Serum

.03 oz

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Intensely conditions hair with the power of Argan Oil.
  • Nurtures and strengthens hair follicles with Castor Oil.
  • Soothes and stimulates hair with a blend of Essential Oils.
Purchase options

Hair Therapy Strengthen & Grow Hair Serum $19.99

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

Formulated to help you achieve healthy, beautiful hair, the Hair Therapy Strengthen & Grow Hair Serum can help add shine, lock in moisture, and revive your hair’s natural luster. Improve the health of your hair by strengthening strands from the roots to the tips using naturally nourishing botanical ingredients.

Argania Spinosa (Argan) Kernel Oil, Simmondsia Chinensis (Jojoba) Seed Oil, Helianthus Annuus (Sunflower) Seed Oil, Isopropyl Myristate, Vaccinium Macrocarpon (Cranberry) Seed Oil, Persea Gratissima (Avocado) Oil, Ricinus Communis (Castor) Seed Oil, Rosmarinus Officinalis (Rosemary) Leaf/Stem Oil, Salvia Sclarea (Clary Sage) Oil, Citrus Aurantium Bergamia (Bergamot) Peel Oil, Cedrus Atlantica (Atlas Cedarwood) Wood Oil, Lavandula Intermedia (Lavandin) Flower/Leaf/Stem Oil, Copaifera Officinalis (Balsam Copaiba) Resin, Tocopherol (Vitamin E)

To the best of our knowledge, this product can expose you to chemicals including Myrcene, which is known to the State of California to cause cancer.

For more information go to www.p65warnings.ca.gov.

This multi-purpose hair serum can be used as a pre-wash treatment or applied to ends of hair to help tame flyaways while locking in shine and moisture.

Pre-Wash:
1. Fill the dropper with hair serum and apply directly to your hairline. Gently massage into scalp.
2. Apply more or less as needed. Leave in for 30 minutes (or overnight if desired) and wash out with shampoo.

Leave-In:
1. Add a few drops of hair serum to your fingertips and rub together.
2. Apply serum evenly through clean strands, focusing on the ends. A little goes a long way, so use sparingly to achieve desired look.

Some natural separation may occur. Please shake well before use.

Grove Values

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3,000+ BANNED INGREDIENTS

Personal care with nothing to hide.

From head to toe, every product is screened for ingredient safety, material impact, and unnecessary waste — so you can feel more confident in what touches your body every day.

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Strictly screened ingredients

Including parabens, PEGs, sulfates, phthalates, and synthetic fragrance

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Cruelty free

Every personal care brand we offer is committed to cruelty-free practices

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Less plastic, fewer microplastics

Refillable and reduced-plastic options that lessen waste and microplastic exposure

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Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog