Product Description
L'Oréal Professionnel Liss Unlimited Leave-In Hair Serum is a professional smoothing serum specially designed for frizzy, dry, rough, and unmanageable hair. The lightweight leave-in formula helps control humidity-induced frizz, smooth hair fibers, and improve shine without making hair feel heavy. It is commonly used before blow-drying and styling to create a sleek, polished finish.
According to L'Oréal Professionnel, the serum provides up to 96 hours of frizz control when used with the complete Liss Unlimited routine.
Key Benefits
- Controls frizz and flyaways
- Helps smooth rough and unruly hair
- Provides humidity protection
- Adds softness and shine
- Improves manageability and detangling
- Lightweight leave-in formula
- Suitable for blow-dry styling and daily use
Main Ingredients
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Evening Primrose Oil – rich in Omega-6 fatty acids that help nourish, smooth, and soften hair
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Pro-Keratin Complex – helps strengthen the hair structure and improve smoothness
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Smoothing Agents – help reduce frizz and improve shine
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Lightweight Silicone-Based Conditioning Ingredients – help seal the hair cuticle and create a polished finish
Full Ingredient List
Common ingredients include:
Cyclopentasiloxane, Dimethiconol, Alcohol Denat., Isopropyl Myristate, Evening Primrose Oil (Oenothera Biennis Oil), Fragrance (Parfum), and conditioning/smoothing agents.
Ingredient lists may vary slightly depending on region, packaging updates, and manufacturing batch.
How to Use
- Wash and towel-dry your hair.
- Take a small amount of serum into your palms.
- Apply evenly through mid-lengths and ends.
- Do not rinse.
- Blow-dry or style as desired.
Best For
- Frizzy hair
- Dry hair
- Unruly hair
- Chemically treated hair
- Blow-dry styling
- Humid weather conditions
User Feedback Highlights
Many users report smoother, shinier hair and improved frizz control, especially in humid climates. Some reviewers particularly like the fragrance and softness it provides, while others note that results can vary depending on hair type and styling routine.
Important Tips
- Use a small amount to avoid weighing hair down.
- Works best on damp hair before blow-drying.
- Pair with Liss Unlimited Shampoo and Mask for stronger anti-frizz results.
- Use a heat protectant when using high-temperature styling tools.
