Biotin Rosemary Onion Hair Growth Serum – All Hair Types

Transform your hair care routine with the Biotin Rosemary & Onion Hair Growth Serum by Water Ice Levin — a nourishing, CPNP-certified formula crafted for all hair types. Enriched with powerhouse botanicals and biotin, this lightweight serum helps strengthen strands, boost vitality, and leave hair feeling silky, smooth, and supple with every use.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Why You'll Love It

• Biotin-Infused Formula: Supports stronger, healthier-looking hair from root to tip, promoting visible fullness and vitality over time.
• Rosemary & Onion Extracts: Two of nature's most celebrated hair-care ingredients, known for nourishing the scalp and encouraging a healthy growth environment.
• Smooth & Supple Results: Leaves hair visibly softer, more manageable, and gleaming with natural shine after regular use.
• Suitable for All Hair Types: Whether your hair is straight, wavy, curly, or coily — fine or thick — this serum adapts to deliver optimal nourishment.
• Unisex Formula: Designed for both men and women, making it a versatile addition to any household's hair care shelf.
• CPNP Certified & Free from High-Concern Chemicals: Rigorously tested and certified for safety and effectiveness, so you can feel confident in what you're applying.
• Easy, Mess-Free Application: The convenient single-unit format makes application quick and simple, fitting seamlessly into your daily routine.

Product Specifications

• Brand: Water Ice Levin
• Certification: CPNP
• Net Weight: 30g
• Gender: Unisex
• High-Concern Chemicals: None
• Period After Opening: 12 months
• Model Number: WA-01-629
• Country of Origin: Made in Mainland China

How to Use

1. Apply a small amount of serum to clean, towel-dried or dry hair.
2. Gently massage into the scalp and work through the lengths and ends.
3. Style as usual — no rinsing required. Use regularly for best results.

Explore More Hair Care Essentials

Complete your routine with these related products from our collection:

• Discover more nourishing treatments in our Hair Growth collection

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• Shop our Crafts, DIY & Stationery collection

For more information on hair health and scalp care, visit the National Institutes of Health – Hair and Scalp Health Research (NIH/NCBI).

Learn more: Pattern hair loss

Frequently Asked Questions

Q: What hair types is the Biotin Rosemary & Onion Hair Growth Serum suitable for?

A: This serum is formulated for all hair types — straight, wavy, curly, or coily, fine or thick. Its lightweight, nourishing blend adapts to deliver moisture and strength regardless of your hair texture or condition.

Q: How often should I use the Biotin Rosemary & Onion Hair Serum?

A: For best results, apply the serum regularly as part of your daily or every-other-day hair care routine. Consistent use helps maximize the nourishing benefits of biotin, rosemary, and onion extracts on your hair and scalp.

Q: Is this hair serum safe for both men and women?

A: Yes! The Water Ice Levin Biotin Rosemary & Onion Hair Serum features a unisex formula that is suitable for both men and women. It is CPNP certified and free from high-concern chemicals, making it a safe and effective choice for the whole household.

Q: Does the serum need to be rinsed out after application?

A: No rinsing is required. This is a leave-in treatment serum — simply apply to your hair and scalp, massage in gently, and style as desired. The lightweight formula absorbs quickly without leaving a heavy or greasy residue.