BIYSBER 4-Peptide Lash Serum, 6 mL

BIYSBER lash serum combines peptides, biotin, hyaluronic acid, and botanical extracts in a daily lash-conditioning formula. It is applied along the upper lash line once daily with a precision brush, with the listing describing fuller-looking lashes after consistent use.

At a glance

The listing describes a conditioning formula featuring peptides, biotin, hyaluronic acid, and nine botanical extracts.
A 1.2 mm precision brush is intended to lay a thin layer along the upper lash line.
The manufacturer claims visible-looking improvements in four weeks with consistent use. That is a product claim, not an independently verified result.

Price

$19.99Save 74%

Reference price: ~~$76.99~~

Price checked: Nov 13, 2026

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Often bought together

Biysber Advanced Eyelash Growth Serum with Peptide Complex & Botanicals, Lash Serum for Eyelash Growth to Boost Fuller, Thicker Lashes, Vegan Formula for Sensitive Eyes, 6 mL

$21.99

Pros and cons

Pros

Once-daily application is a straightforward fit for a regular lash-care routine.
The narrow brush is described as allowing controlled placement along the upper lash line.
The formula is claimed to be vegan and without added hormones.

Technical specifications

6 specifications

Identity
Brand	BIYSBER

Dimensions and installation
Dimensions listed	0.5 x 0.5 x 3.5 inches; 0.8 ounces

Formula and application
Formula ingredients	multi-peptides, biotin, hyaluronic acid, and 9 botanical extracts
Net contents	6 mL / 0.2 fl oz
Applicator brush size	1.2mm
Application frequency	once daily

What to know before buying

The four-week results and 96% improvement statements are manufacturer claims, with no supporting study details provided here. Apply to clean, dry skin and let it dry fully before skincare or makeup. The formula is marketed for sensitive eyes and contact lens wearers, but individual tolerance is not established by the listing.

Who is it for?

A good fit for

People seeking a once-daily lash-conditioning serum with peptide and botanical ingredients.
Buyers who prefer a narrow brush applicator for upper lash-line placement.

Less suited to

Shoppers seeking independently substantiated growth results or detailed study information.
Anyone who needs a product with a confirmed individual response or ingredient sensitivity profile.

BIYSBER 4-Peptide Lash Serum, 6 mL · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 18 ratings

5 stars100%100%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star0%0%

The supplied material includes aggregate ratings but no written customer feedback. The rating distribution is entirely five-star, though the sample is small, so it offers limited insight into application experience, tolerance, or results. It does not verify the listing’s four-week improvement claims.

Frequently asked questions

How often should the serum be applied?

The listing instructs applying it once daily to clean, dry skin along the upper lash line. Let it dry completely before continuing with skincare or makeup.

What ingredients does the listing identify?

It names multi-peptides, biotin, hyaluronic acid, and nine botanical extracts.

Does the listing guarantee visible changes in four weeks?

No. Four weeks and the stated user-improvement percentage are manufacturer claims, not independently verified results.