Schwarzkopf Professional Flatliner - Hair Serum Service 200ml

Shield straightened styles from thermal damage with Schwarzkopf Professional OSIS+ Flatliner, a focused heat protection serum designed specifically for flat iron workflows.

Targeted Thermal Defense

Formulated for repeated hot-tool passes, this serum creates a breathable protective layer that reduces moisture evaporation and prevents cuticle lifting. The lightweight blend delivers immediate lubrication, allowing straighteners to glide continuously without snagging or creating friction stress on resistant or coarse strands.

Application Protocol

• Apply to towel-dried or completely dry sections before styling.
• Distribute evenly using a wide-tooth comb to ensure uniform coverage across each section.
• Clean flat iron plates between sessions to prevent dried formula from reducing thermal conductivity.
• Dispense measured amounts rather than saturating strands to maintain natural movement post-style.

Professional Sizing & Storage

The 200ml container supports consistent dosing for routine salon treatments or home maintenance regimens. Store upright in a cool, shaded location and keep the dispensing mechanism clear of steam sources to preserve formulation stability. Allow treated hair to fully cool before brushing or securing to lock the thermal seal in place.