L'Oreal Total Repair 5 Serum

The L'Oreal Paris Total Repair 5 Serum is a leave-in treatment that continues the TR5 repair work between washes. Ceramide fills gaps in the damaged cuticle layer and Pro-Keratin penetrates the hair tip to temporarily bond split ends and reinforce the fibre structure throughout the day. Targets all five signs of damage: hairfall, roughness, dryness, dullness, and split ends, in a leave-in format that works continuously without rinsing out. Lightweight, non-greasy, suitable for daily use. Apply to damp mid-lengths and ends after conditioning. Part of the L'Oreal Paris Total Repair 5 system.

For the Total Repair 5 Conditioner that repairs during washing before this serum maintains repair throughout the day, a repair restoring conditioner handles the wash-time repair step this serum then maintains between washes.

Q1. How does this serum help with split ends?

Pro-Keratin penetrates the hair tip and temporarily fills the separated cortex structures, creating a bonded end that looks smoother and resists further fraying. Daily use builds cumulative split end protection beyond what a surface-only coating provides. For the 6 Oil Nourish deep conditioner that nourishes the most damaged ends intensively on wash days, a intensive nourishing conditioner deeply conditions damaged ends on wash days before this serum maintains their protection daily.

Q2. Should I apply this on wet or dry hair?

Damp hair after conditioning for best absorption. Apply to mid-lengths and ends, then style or air dry. On dry hair between washes, apply a smaller amount directly to split ends for a targeted repair and shine boost. For the EO Serum that provides frizz control and shine in a similar leave-in format, a frizz control finishing serum is the Extraordinary Oil alternative leave-in for frizz control and shine on the same post-wash step.

Q3. Can this replace the Total Repair 5 Conditioner?

No. The conditioner repairs during washing when the cuticle is most receptive. This serum maintains that repair between washes. Both are needed for maximum repair results. For the GG Conditioner that adds gloss alongside repair on the same wash days, a gloss boosting conditioner adds surface shine to damaged hair on wash days before this serum continues internal repair throughout the day.

Q4. Is this safe for daily use on severely damaged hair?

Yes, formulated for severely damaged porous hair needing continuous daily repair support. The lightweight formula does not build up with daily use. For the FR Conditioner that also strengthens against breakage on wash days, a hairfall strengthening conditioner reduces breakage on wash days while this serum reduces it continuously between washes.

Q5. Can I use this before heat styling?

Yes. Applied to damp hair before blow drying, ceramide and protein actives help distribute heat more evenly and protect the cuticle from concentrated damage. For very high heat above 200C, add a dedicated heat protectant on top. For the CP Conditioner that prepares colour-treated hair before heat styling on wash days, a colour protecting conditioner conditions colour-treated hair on wash days before this serum provides daily repair and thermal protection.