Olaplex Lashbond Building Serum (4.5 mL /0.15 fl oz)

A clear, lightweight lash serum formulated with Olaplex’s Bond-Building Technology™ and Peptide Complex Technology™. Designed to strengthen, hydrate, and visibly enhance natural lashes without prostaglandins.

• Boosts lash strength and density—clinically shown: 94% saw fuller-looking lashes, 97% noticed longer denser lashes, and 100% reported thicker lashes after 12 weeks of twice-daily use 

• Visible results in as little as 2–4 weeks; users report darker, curled, and noticeably longer lashes 

• Hydrates and conditions with hyaluronic acid, biotin, and panthenol to help prevent brittleness and breakage

• Peptide Complex (Palmitoyl Pentapeptide-83, Acetyl Tetrapeptide-3, Myristoyl Pentapeptide-17): Supports lash growth cycles and retention

• Bond-Building Technology: Repairs internal lash bonds

• Hyaluronic Acid & Glycerin: Moisturize and soften lash hairs

• Biotin & Panthenol: Strengthen and nourish hair

• Oat & Red Clover Extracts: Calm and support follicle health 

How to Use

Apply once daily, morning and night, along the upper lash line only on clean, dry skin. Allow it to dry (~90 seconds) before layering other eye products. After achieving desired results, reduce to maintenance use 2–3 times per week 

• One user reported fuller, longer, and healthier lashes within four weeks with no irritation 

• Another noted improvements in curl and darkness by the two-week point 

• Mixed experiences exist: while many praise its effectiveness, some users—particularly after three months—reported no change 

• Experts highlight the serum’s gentle peptide-based formulation as a safer, prostaglandin-free option that supports lash retention without harsh side effects 

• Featured in top beauty lists as a daytime wand for firmer, hydrated lashes 

Usage Timeline

• 2 weeks: users begin noticing curl, darkness, and subtle length

• 4 weeks: fuller, longer lash appearance

• 12 weeks: strongest improvements reported in thickness, density, and retention 

Olaplex Lashbond Building Serum offers a peptide-driven, prostaglandin-free formula designed to strengthen, hydrate, and visibly enhance lashes. Most users see noticeable improvements in curl, length, and fullness within 4 weeks. It's a strong option for a clean beauty lash serum—just be ready to commit to consistent use and the premium price.