A clear glass bottle with a white cap labeled “Sea-el Castor Lash & Brow Serum,” shown against a white background. A diagram displays a central oil droplet with bubbles, labeled: Organic Castor Oil, Vitamin E, Organic Black Seed Oil, and Organic Rosemary Oil. Sea-el’s Castor Lash & Brow Serum nourishes thinning brows and lashes with these ingredients. A bottle of Sea-el Castor Lash & Brow Serum with a white cap and minimal label sits on sandy ground, ocean and sky blurred behind—ideal for remedying thinning lashes or brows. Text on a green background about 3,000 banned ingredients and a higher standard for home products.
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A clear glass bottle with a white cap labeled “Sea-el Castor Lash & Brow Serum,” shown against a white background.

Sea-el Castor Lash & Brow Serum

1 oz

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Nourishes for visibly fuller, healthier-looking lashes and brows.
  • Made with thoughtfully sourced, natural ingredients.
  • Supports your natural beauty without harsh chemicals.
Scent: Ocean-Inspired
Purchase options

Castor Lash & Brow Serum $17.49

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

Effective remedy for thinning lashes and brows

Net Wt: 30 mL / 1 fl oz

ORGANIC CASTOR OIL ORGANIC BLACK SEED OIL ORGANIC ROSEMARY OIL TOCOPHEROL VITAMIN E

apply a small amount to clean dry lashes and brows each night using the applicator brush use consistently for best results avoid direct contact with eyes

Grove Values

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3,000+ BANNED INGREDIENTS

Beautifully clean makeup and skincare.

From lip color to moisturizer, every beauty product is vetted for ingredients and materials that align with our strict standards, so you can feel confident in what goes on your skin.

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No hidden ingredients

Made without parabens, phthalates, or heavy metals

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Safer, smarter formulas

No talc, formaldehyde donors, or petroleum-based ingredients

Three multi-use Axiology Lip-to-Lid Balmies crayons in a red box, with the box lid partially open and another box with product details leaning against it, all on a peach-colored circle background.

Less plastic, fewer microplastics

Low-waste formats and plastic-free packaging where possible

A close-up of a human fingertip with colorful microplastic particles on the skin, and images of a plastic bag, bottle, and six-pack ring layered in the corner, highlighting plastic pollution.

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

Shop Beyond Plastic™

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