TRUSS High Liss 600ml
TRUSS High Liss 600ml is a professional salon thermal sealing treatment designed to help reduce frizz, control volume, and promote smoother-looking hair through a stylist-led heat process.
This standard High Liss formula is positioned for colored or virgin hair and is described in manufacturer and retailer materials as formaldehyde-free, with results that may last approximately 8–10 weeks depending on hair type, service technique, and aftercare.
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A polished salon smoothing ritual for sleeker-looking, frizz-controlled hair.
✦ Professional Thermal Smoothing
TRUSS High Liss is a professional thermal sealing treatment created for salon smoothing services. The formula is used to help reduce frizz, soften the look of excess volume, and seal the cuticle through a controlled application, heat processing, rinse, blow-dry, and flat-iron finish.
Designed for colored or virgin hair, this standard High Liss formula is described by manufacturer and retailer materials as formaldehyde-free and compatible with other chemical treatments when professional guidance is followed. Published guidance places expected longevity around 8–10 weeks, depending on the hair, service technique, and maintenance routine.
✦ Smooth-Service Benefits
✦ Key Ingredients
✦ How to Use
- 01For professional salon use. Shampoo twice with TRUSS Clarifying Shampoo, or use TRUSS Bidimensional Shampoo when the hair is fragile or damaged.
- 02Blow-dry hair completely. Apply evenly from nape to crown, keeping approximately 1/2 inch from the scalp, then cover with a plastic cap.
- 03Process under a hooded dryer according to hair type: about 30 minutes for thin or damaged hair, 45 minutes for medium hair, and 60 minutes for coarse or resistant hair. Rinse thoroughly.
- 04Brand guidance includes applying TRUSS Amino before the final finish. Blow-dry straight, then flat-iron in thin sections using professional temperature judgment for the hair condition.
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