Nu Colour® Lash + Brow Serum (USA)

Nu Colour Lash + Brow Serum — Clinically Proven Growth Serum for Fuller Lashes and Brows

Sparse lashes and thin brows aren't just a cosmetic concern — they affect how expressive and youthful your face looks. Nu Colour Lash + Brow Serum is a clinically tested growth serum that nourishes hair follicles along the lash line and brow area, promoting the appearance of fuller, longer, and thicker-looking lashes and brows over a 4-8 week period. It's not a mascara or brow pencil that creates an illusion — it's a treatment serum that works at the follicle level to support natural growth.

Lash and brow growth serums work by extending the anagen (active growth) phase of the hair growth cycle. Each lash and brow hair goes through three phases: anagen (growth), catagen (transition), and telogen (resting/shedding). When the anagen phase is short — due to genetics, aging, hormonal changes, or damage — lashes and brows appear sparse and thin. Peptide-based growth serums help maintain the active growth phase for longer, resulting in lashes and brows that have more time to grow before shedding. This is why results take 4-8 weeks — you're working with the natural hair growth timeline.

Key Benefits

• Clinically proven results — Visible improvement in lash length, thickness, and fullness within 4 weeks
• Dual-purpose formula — Works on both lashes and brows with a single product
• Peptide-based growth — Nourishes follicles without the side effects associated with prostaglandin-based serums
• Easy application — Precision applicator makes daily use simple and mess-free
• Safe for sensitive eyes — Ophthalmologist-tested formula suitable for contact lens wearers

Key Ingredients

The serum uses peptide technology rather than prostaglandin analogs — a gentler approach to lash and brow enhancement.

• Lash-Supporting Peptide Complex — A blend of bioactive peptides that signal hair follicles to maintain the active growth phase. Unlike prostaglandin-based products (like bimatoprost, found in prescription serums like Latisse), peptides don't carry risks of iris color change, periorbital fat loss, or skin darkening around the eyes. They work by providing nutritional signals to the follicle, supporting the natural growth process rather than forcing it.
• Biotin (Vitamin B7) — An essential vitamin for keratin production — keratin being the protein that makes up lashes, brows, and nails. Topical biotin supports the structural building blocks that growing hairs need. While oral biotin supplements have mixed evidence for hair growth, topical application delivers the nutrient directly to the follicle environment where it's needed.
• Panthenol (Provitamin B5) — Conditions and strengthens existing lashes and brows, reducing breakage. Fragile lashes that break easily appear shorter and sparser even when growth is normal — panthenol addresses this by improving hair flexibility and resilience.
• Conditioning Botanical Extracts — Supporting plant-derived ingredients that nourish the delicate skin along the lash line and brow ridge, creating an optimal environment for follicle health.

What Makes This Formula Different

The lash serum market is divided between prescription prostaglandin analogs (effective but with notable side effects) and cosmetic peptide serums (gentler but variable in effectiveness). Nu Colour Lash + Brow Serum is a peptide-based formula backed by clinical testing — it sits in the sweet spot of clinically demonstrated results without the side effect profile of prescription options.

The dual lash-and-brow functionality is a genuine advantage. Many lash serums aren't formulated or tested for brow use. This serum is specifically designed for both areas, with a precision applicator that works for the fine lash line and the broader brow area. One product, two purposes — and brow fullness is arguably as impactful as lash length for overall facial appearance.

The peptide-based approach also means no concerns about the side effects that have made prostaglandin serums controversial. These include iris color darkening (permanent in some cases), periorbital fat pad atrophy (sunken-looking eyes), and eyelid skin darkening. None of these are risks with peptide-based formulas like this one.

How It Compares

Comparison based on publicly available product information as of 2025. Formulations may change.

How to Use

Apply once daily, ideally at night after removing all eye makeup. For lashes: draw the applicator along the upper lash line from inner to outer corner, as close to the roots as possible — one stroke per eye is sufficient. For brows: apply along the brow line, concentrating on sparse areas. Allow to dry for 1-2 minutes before applying other eye products. Use consistently every night for at least 4-8 weeks before evaluating results — hair growth cycles require patience. Do not apply to lower lashes (the product transfers naturally during blinking). Remove contact lenses before application.

Best For

This serum is ideal for anyone with naturally sparse, thin, or short lashes or brows, as well as those experiencing age-related thinning. It's particularly well-suited for people who've over-plucked their brows and want to encourage regrowth, or anyone recovering from lash damage (extensions, curling, harsh makeup removal). If you have eye conditions (glaucoma, uveitis) or are using eye drops, consult your ophthalmologist before starting any lash serum.

Frequently Asked Questions

Q: How long before I see results?

A: Most users notice visible improvement in lash length and brow fullness within 4-6 weeks of consistent nightly use. Full results are typically visible at 8-12 weeks. Patience is essential — you're working with natural hair growth cycles.

Q: Will my lashes/brows fall out if I stop using it?

A: Your lashes and brows will gradually return to their pre-treatment appearance over several months if you stop completely. Many people maintain results with reduced frequency (every other day) once they've achieved their desired fullness.

Q: Is this safe for contact lens wearers?

A: Yes, but remove your contacts before applying the serum and wait at least 15 minutes before reinserting them. The formula is ophthalmologist-tested.

Q: Can I use this with lash extensions?

A: It's best used when you're NOT wearing extensions. Lash serums strengthen and grow your natural lashes — using them between extension sessions helps your natural lashes recover from the stress of extensions.

Q: What's the difference between this and the Curl & Lash Mascara?

A: Completely different products. The mascara is a cosmetic that makes your existing lashes look darker and more curled (temporary, washes off). The Lash + Brow Serum is a treatment that promotes actual lash and brow growth over time (cumulative, ongoing). Use the serum at night, the mascara during the day.

Shipping & Payment

Payment Methods: Credit Card, Apple Pay, Google Pay, PayPal, PayPal Pay Later

Shipping: US-wide delivery, typically 3-7 business days

Shipping Cost: US$2.99 flat rate

Free Shipping: On orders over US$79

References

• American Academy of Dermatology — Thin Eyelashes
• PubMed — Peptides for skin, hair, and nail care
• Nu Skin Official — Nu Colour Lash + Brow Serum Product Page

NuBest Skin is an independent Nu Skin Brand Affiliate. This product listing is not produced or endorsed by Nu Skin Enterprises, Inc.