Olaplex Lashbond Building Serum clear eyelash enhancer, 4.5 mL — peptide bond technology for longer, healthier lashes

Olaplex Lashbond Building Serum is a clear, lightweight eyelash serum formulated to support healthier-looking, conditioned lashes and the appearance of longer, fuller lashes with twice-daily use.

Developed by Olaplex, the Lashbond Building Serum pairs bond-supporting science with nourishing ingredients to help improve lash condition and appearance. The ophthalmologist-tested, prostaglandin-free formula is compatible with contact lenses, lash lifts, extensions, and false lashes, and it’s designed for everyday morning and evening application. Clinical and consumer studies report visible improvements in lash density, length appearance, and thickness over weeks of consistent use.

How quickly will I notice changes in my lashes?

Many users report a perceived improvement in lash condition within two weeks and a look of longer, fuller lashes after about four weeks of regular use. Individual results vary depending on lash cycle, prior treatments, and consistency of application.

• Conditioned, healthier-looking lashes often noticed in ~2 weeks
• Visible longer, fuller-looking lashes can appear around ~4 weeks
• Continued nightly and morning application supports ongoing improvements

What key ingredients are responsible for results?

Olaplex combines a proprietary peptide complex with its established bond-building technology and a nourishing complex to support the lash environment and reduce dryness. These ingredients work together to support the natural growth cycle, strengthen the lash base, and hydrate each strand.

• OLAPLEX Peptide Complex Technology: peptide blend to support growth cycle and retention
• OLAPLEX Bond Building Technology: helps support the skin barrier at the lash line
• Hyaluronic Acid & Biotin: hydrate and reduce the appearance of brittle, dry lashes

How do I use Lashbond Building Serum safely and effectively?

Apply a single, light swipe of the clear serum to the base of clean, dry upper and lower lash lines once in the morning and once at night. Avoid getting the product directly into the eye; if contact occurs, rinse with water. The formulation is ophthalmologist tested and compatible with lashes and lens wear.

• Use morning and evening on clean, makeup-free lashes
• Apply a single sweep along the lash line — no rubbing or heavy layering
• Safe with contact lenses, lash lifts, extensions, and false lashes

Can Lashbond Building Serum be used with other lash treatments?

The serum is designed to integrate with common cosmetic lash procedures and daily eye care routines. Because it’s prostaglandin-free and ophthalmologist tested, it generally pairs well with extensions, lifts, and lens wear; consult your eye professional for personal guidance if you have specific medical or sensitivity concerns.

• Compatible with lash lifts, extensions, and false lashes
• Works alongside standard eye-care and makeup routines
• Consult an eye-care professional if you have ocular conditions or sensitivities

Who is this for: Olaplex Lashbond Building Serum is aimed at anyone seeking to improve the condition and appearance of their natural lashes — people experiencing dryness, brittleness, or the desire for a fuller, longer-looking lash line without prostaglandins. It suits contact lens wearers and users of lash services who want a science-driven, lightweight daily serum to support lash retention and overall lash health aesthetics.

Ingredients

Water (Aqua/Eau), Butylene Glycol, Glycerin, Hydroxyethylcellulose, Palmitoyl Pentapeptide-83 Amide, Acetyl Tetrapeptide-3, Myristoyl Pentapeptide-17, Bis-Aminopropyl Diglycol Dimaleate, Sodium Hyaluronate, Biotin, Panthenol, Avena Sativa (Oat) Kernel Extract, Pantethine, Aminomethyl Propanol, Sorbic Acid, Rhizobian Gum, Benzoic Acid, Sodium Benzoate, Dextran, Trifolium Pratense (Clover) Flower Extract, Citric Acid, Phenoxyethanol, Chlorphenesin, Potassium Sorbate