Felps Professional Liss Express Heat Protectant + Inner Regener Acidifier Hair Kit – Heat Protection up to 230°C, pH Sealing & Frizz Control – Kit of 2 (7.78 fl oz / 230 ml fluid, 4.06 fl oz / 120 ml acidifier)
- Helps rebalance chemically treated hair to a low, cuticle-friendly pH after colour or bleach.
- Helps protect the fibre from heat of up to 230 degrees Celsius during blow-drying and flat-ironing.
- Creates a barrier against humidity so lengths stay aligned for longer.
- Helps reduce the appearance of frizz and split-looking ends while speeding up drying.
For anyone who colours, bleaches or relaxes their hair and still reaches for a dryer or flat iron most days. Suits every texture from fine and straight to curly and coily, and works as easily at home as it does on the salon backbar.
Voir plus
- Two full-size products: a 230 ml thermo-activated protectant fluid and a 120 ml low-pH acidifier.
- Both formulas are developed and produced in Brazil by Felps Professional, a salon brand from Cascavel, Parana.
- Built around Polysilicone-29, lactic acid, Phytoqueratina proteins, shea butter and linseed and chia seed extracts.
- Gradual smoothing effect with no straightening chemicals involved.
After shampooing, apply the Inner Regener Acidifier to lengths and ends with gloved hands, avoiding the scalp. Leave on for 3 to 5 minutes and rinse thoroughly. Towel-dry, then mist Liss Express evenly over lengths and ends from about 20 cm away and comb through. Finish with a blow-dryer and/or flat iron to activate the film. Reapply the fluid lightly on dry hair between washes when humidity is high. Professional use recommended.
- The protectant is a light trigger-spray fluid, not an aerosol; the acidifier is a fluid cream applied with gloves.
- Original Brazilian retail packaging, labelled in Portuguese; 230 ml plus 120 ml for a total of 350 ml across two items.
The two products act on opposite sides of the same problem. The acidifier lowers the pH so a cuticle swollen by colour or bleach can settle back down, which is what makes hair feel smooth rather than porous. Once that surface is calmer, the Liss Express film has something even to grip: the silicone layer spreads more uniformly, so the heat barrier and the humidity block both perform better. Used in sequence, wash after wash, they compound into the gradual smoothing effect the line is known for - without any straightening chemistry.
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Ce produit est garanti authentique et protégé par notre Programme de Livraison Garantie.
En savoir plusTwo steps, two very different jobs, one smoother result. The Felps Professional Liss Express Heat Protectant + Inner Regener Acidifier Hair Kit – Kit of 2 (7.78 fl oz / 230 ml fluid, 4.06 fl oz / 120 ml acidifier) pairs the shower-time step that helps close the cuticle with the finishing mist that shields it before the hot tools come out.
The Inner Regener Acidifier works at a pH of 2.2 to 2.8. Built around Phytoqueratina and Nutrimel, it helps bring the fibre back to its ideal acidity after colouring or bleaching, helps seal a raised cuticle and leaves the lengths feeling disciplined, silky and easier to comb.
Liss Express then takes over on dry or damp hair. Its silicone-rich, thermo-activated formula built around Polysilicone-29 forms a flexible film that helps protect the fibre from heat of up to 230°C (446°F) while creating a barrier against humidity — for a gradual smoothing effect, faster drying and a glossy, weightless finish.
Included in This Kit
- Liss Express Heat Protectant Fluid 7.78 fl oz (230 ml): Thermo-activated mist that helps shield strands from blow-dryers and flat irons up to 230°C while blocking humidity.
- Inner Regener Acidifier 4.06 fl oz (120 ml): Low-pH acidifying step that helps rebalance the fibre and seal the cuticle after chemical services.
Key Features:
- Heat Protection up to 230°C: Helps shield the fibre from blow-dryers, flat irons and curling wands.
- pH Sealing Step: The acidifier works at pH 2.2 to 2.8 to help close the cuticle after colour, bleach or relaxing.
- Anti-Humidity Barrier: A flexible film that helps keep hair aligned when the air is damp.
- Helps Reduce the Appearance of Frizz: Smoother, more aligned lengths with fewer visible flyaways and split-looking ends.
- Gradual Smoothing, No Chemistry: Regular use builds a progressively sleeker look without any straightening agents.
- Faster Drying, Weightless Touch: The fluid speeds up blow-drying and leaves no heavy residue behind.
- Made in Brazil: Both formulas are developed and produced in Brazil by a salon-focused professional brand.
How To Use
Professional Use Recommended.
- Wash: Cleanse the hair with your usual Felps Professional shampoo and squeeze out the excess water.
- Acidify: Apply the Inner Regener Acidifier to the lengths and ends with gloved hands, avoiding the scalp. Leave on for 3 to 5 minutes.
- Rinse: Rinse thoroughly with cool or lukewarm water, then towel-dry gently.
- Protect: Mist Liss Express evenly over the lengths and ends from about 20 cm away, then comb through to distribute it.
- Style: Finish with a blow-dryer and/or flat iron to activate the thermo-protective film. Reapply lightly on dry hair between washes if humidity strikes.
Expert Tip: For a fuller Inner Regener routine, follow the acidifier with a Felps Professional treatment mask before you towel-dry — the low pH helps the mask deposit more evenly along the lengths.
Ingredients (Highlights)
- Polysilicone-29: Film-forming silicone that helps build a barrier against humidity and heat.
- Amodimethicone: Conditioning silicone that helps smooth the cuticle and add slip.
- Lactic Acid: The acidifying agent that brings the acidifier to a low, cuticle-friendly pH.
- Hydrolyzed Keratin & Hydrolyzed Wheat Protein (Phytoqueratina): Protein fragments that help fragile strands feel stronger and less porous.
- Butyrospermum Parkii Butter & Cocos Nucifera Oil: Rich lipids that help seal in moisture and soften rough-feeling ends.
- Linum Usitatissimum & Salvia Hispanica Seed Extracts: Linseed and chia extracts that help condition and add suppleness.
- Xylitol & Anhydroxylitol: Sugar-derived humectants that help hair hold on to moisture.
Full Ingredient List (INCI) – Liss Express Heat Protectant Fluid 230 ml: Aqua, Dipropylene Glycol, PEG-40 Hydrogenated Castor Oil, Amodimethicone, Parfum, Polysilicone-29, Propanediol, Xylityl Sesquicaprylate, Trideceth-12, Linum Usitatissimum Seed Extract, Anhydroxylitol, Disodium EDTA, Citric Acid, Salvia Hispanica Seed Extract, Cetrimonium Chloride, Sodium Benzoate, Glyceryl Oleate Citrate, Algin, Caprylic/Capric Triglyceride, Benzyl Alcohol, Caprylic Acid, Xylitol, Potassium Sorbate, Alpha-Isomethyl Ionone, Benzyl Benzoate, Citronellol, Coumarin, Dimethyl Phenethyl Acetate, Geranyl Acetate, Hexamethylindanopyran, Hexyl Cinnamal, Hydroxycitronellal, Limonene, Linalool, Tetramethyl Acetyloctahydronaphthalenes.
Full Ingredient List (INCI) – Inner Regener Acidifier 120 ml: Aqua; Cetearyl Alcohol; Lactic Acid; Glycerin; Stearamidopropyl Dimethylamine; Behentrimonium Chloride; Cetyl Alcohol; Cetrimonium Chloride; Cyclopentasiloxane; Bis-Cetearyl Amodimethicone; Butyrospermum Parkii Butter; Cocos Nucifera Oil; Isopropyl Palmitate; Hydroxypropyl Starch Phosphate; Parfum; Hydrolyzed Keratin; Dimethicone; Isopropyl Alcohol; Amodimethicone; Guar Hydroxypropyltrimonium Chloride; Alcohol; Dimethyl Palmitamine; Polyquaternium-7; Disodium EDTA; Hydrolyzed Wheat Protein; Laurdimonium Hydroxypropyl Hydrolyzed Keratin; Sodium PCA; Sodium Lactate; Hydrolyzed Soy Protein; Tocopheryl Acetate; Arginine; Methicone; Trideceth-12; Polymnia Sonchifolia Root Juice; Hydrolyzed Corn Protein; Hexyl Cinnamal; Aspartic Acid; PCA; Phenoxyethanol; Benzyl Salicylate; D-Limonene; Carbocysteine; Polyquaternium-10; alpha-Isomethyl Ionone; Citronellol; Sodium Benzoate; Glycine; Alanine; Benzyl Alcohol; Serine; Potassium Sorbate; Valine; Isoleucine; Proline; Threonine; Magnesium Nitrate; Benzyl Benzoate; Methylchloroisothiazolinone and Methylisothiazolinone; Magnesium Chloride; Histidine; Isoeugenol; Phenylalanine; Citric Acid; Dehydroacetic Acid; Xanthan Gum; Citral; Linalool.
Allergen warnings / usage cautions: Both formulas are fragranced and contain declared fragrance allergens including Alpha-Isomethyl Ionone, Benzyl Benzoate, Benzyl Salicylate, Citral, Citronellol, Coumarin, Hexyl Cinnamal, Hydroxycitronellal, Isoeugenol, Limonene and Linalool. The acidifier also contains Methylchloroisothiazolinone and Methylisothiazolinone and has a very low pH — use gloves, keep it off the scalp and rinse thoroughly. For external use only. Avoid contact with the eyes and rinse immediately with plenty of water if contact occurs. Do not apply the heat protectant to the scalp or to injured skin. Keep in a cool place and out of reach of children.
Welcome to the world of Felps Professional, a Brazilian professional hair cosmetics brand headquartered in Cascavel, Paraná. Felps is known in Brazil for its smoothing and volume-reduction treatments and for home-care lines sold through salons, and its products are exported to beauty professionals and enthusiasts around the world. Every formula is developed with the routine of the salon chair in mind, then adapted so you can keep the same finish at home.
FAQ
In which order do I use the two products?
The acidifier comes first, in the shower, after shampooing: 3 to 5 minutes on the lengths, then rinse. Liss Express is the last step before any hot tool, on damp or dry hair.
Are these authentic Felps Professional products?
Yes. Both are genuine Felps Professional, sourced in Brazil through authorised channels, in the original Brazilian packaging, which may be labelled in Portuguese.
Do you ship internationally, and what if I change my mind?
We ship worldwide from our Brazilian sourcing network. Delivery times vary by destination, and our standard return and exchange policy applies to unopened items.
Which hair types is this kit suitable for?
All of them. The fluid is light enough for fine, straight hair and still effective on wavy, curly and coily textures, while the acidifier is especially welcome on colour-treated, bleached or relaxed lengths.
Does this kit straighten hair permanently?
No. Liss Express is a thermal protectant that delivers a gradual smoothing effect while you style, with no straightening chemicals, and the acidifier only works on the pH and feel of the fibre. The look resets with your next wash.
Explore more at our Felps Professional collection.