When is it not recommended to use concentrated protein treatment?

• A. Before washing hair
• B. During a conditioning session
• C. Immediately after a chemical treatment
• D. Before a color service

Answer: (C)

After chemical processing, hair is more porous and its cuticle is often lifted or damaged, so the strand is in a fragile, rebalancing state. Applying a concentrated protein treatment right away can overwhelm the hair with protein, making it stiff and less pliable rather than flexible enough to recover. This is because the hair’s moisture pathways are disrupted and trying to pull in a heavy protein load at that moment can prevent proper moisture uptake, leading to protein overload, stiffness, and potential further breakage.

The safer approach is to first support moisture and cuticle sealing with a hydrating conditioner or a lighter conditioner/post-chemical treatment, then assess how the hair responds. If protein is needed, opt for a milder, balanced option and space it out rather than applying a concentrated dose immediately after the chemical service. This helps restore the protein–moisture balance without risking stiffness or damage.