A whipped, all-natural formula that hydrates, strengthens, and adds shine — proudly made in the USA.

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Spanish Garden

Biotin Hair Serum

Biotin Hair Serum

Regular price $17.99 USD
Regular price Sale price $17.99 USD
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A concentrated serum that uses biotin, pro-vitamin B5, and botanical extracts to strengthen fragile hair and support natural growth. Lightweight and non-greasy, it can be used on damp or dry hair to fortify strands, smooth frizz, and help protect against breakage.

Benefits:

  • Strengthens fragile, breakage-prone hair
  • Smooths frizz and flyaways
  • Supports natural hair growth
  • Fast-absorbing, non-greasy texture

How to Use: Apply a few drops to the scalp and/or lengths on damp or dry hair. Massage in gently. Use daily or as part of your wash-day routine.

Key Ingredients:

  • Biotin — supports keratin for stronger hair
  • Pro-vitamin B5 — moisture retention
  • Botanical extracts — scalp nourishment
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  • Deep Moisture 

    Avocado oil, rich in vitamins and fatty acids, penetrates the strand to hydrate dry, brittle, or damaged hair.

  • Softens & Smooths

    Vitamin E and botanical extracts improve texture, soften strands, and calm frizz.

  • Restores Shine 

    A gentle, moisture-rich cleanse brings back natural shine without stripping the hair.

Rooted in Native American Tradition

Spanish Garden formulas are made with herbs, plants, and natural ingredients long used by the Cherokee, Hopi, Pueblo, Navajo, and Zuni peoples across the Americas — traditions valued for healing, rejuvenation, shine, and protection. Proudly made in the USA.

Nourish your strands from root to tip with our Biotin Hair Serum — a powerful treatment designed to promote thicker, fuller, and stronger hair. Infused with biotin, keratin, and botanical extracts, this lightweight serum targets thinning areas, supports growth, and reduces breakage. Ideal for daily use, it leaves your hair feeling smooth, resilient, and beautifully revitalized.

Water (Aqua), Biotin, Panthenol (Pro-Vitamin B5), Hydrolyzed Keratin, Aloe Barbadensis Leaf Extract, Glycerin, Argania Spinosa (Argan) Oil, Castor Oil, Niacinamide, Tocopherol (Vitamin E), Fragrance, Natural Preservatives

Apply a few drops to damp or dry scalp and massage gently using fingertips. Can also be smoothed through the ends of your hair for added shine and nourishment. Use daily or as needed — no rinsing required.

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Frequently Asked Questions

Is it suitable for all hair types?

Yes — curly, straight, thick, fine, and textured; especially good for dry, damaged, or frizzy hair.

Where is it made?

Made in the USA with carefully sourced ingredients.

Where can I buy it?

Here on our official site and select retail partners.

Shipping & Returns

Orders ship within 1–2 business days via USPS, with delivery typically in 2–5 business days within the US. You'll receive tracking by email once your order is on its way. Not satisfied? We offer a 90-day money-back guarantee — just email marketing@spanishgarden.us to start a return or exchange.