Brazil Protein Nano Gel Smoothing Gel 1 L is a professional smoothing gel for coarse, resistant and curly to afro-textured hair, worked behind the chair to relax frizz and bring down volume. What sets it apart is how it is worked: a cysteamine and cysteine reducer in a gel base with aloe vera, laid onto unwashed hair and left to act for at least 40 minutes before it is rinsed, dried and ironed. It smooths without glyoxylic acid and without formaldehyde or any releasing preservative. The 1 L bottle is the backbar size for regular column work; the same gel is also stocked in 300 ml and 120 ml.

At a glance
  • What it is: Professional smoothing gel with aloe vera, one bottle, no mixing
  • Hair type: Coarse, resistant, curly to afro-textured
  • Reducer: Cysteamine HCl and cysteine HCl, without malic acid
  • Worked without: Glyoxylic acid, formaldehyde and formaldehyde releasers
  • Application: Onto unwashed hair, left to act at least 40 minutes
  • Finish step: Rinse, dry and flat-iron to seal
  • Format: 1 L professional bottle, also 300 ml and 120 ml

Why a cysteamine smoothing gel

Coarse, resistant and curly hair holds its shape because of the bonds inside the fibre. Nano Gel relaxes those bonds with an amino-acid reducer, cysteamine and cysteine, the same pairing behind the Brazil Protein smoothing range but here in a gel base and without malic acid. It smooths without glyoxylic acid and without formaldehyde or any formaldehyde-releasing preservative. Glyoxylic acid is under growing regulatory pressure in the EU, and formaldehyde is why smoothing services long carried a health question mark. The gel format is the point: it goes onto unwashed hair, sits for at least 40 minutes, and is then rinsed, dried and ironed, which is what Brazil Protein means by faster application. You still section, comb the gel through and seal with a flat iron, so you keep control over how much volume you take out.

Key ingredients

  • Cysteamine HCl and cysteine HCl: the amino-acid reducer, cysteamine second on the ingredient list, that relaxes the bond structure so the hair can be ironed straighter.
  • Aloe vera: the ingredient the pack leads on, a humectant that keeps the gel from feeling harsh through the process.
  • Avocado oil and hazelnut leaf: conditioning agents that keep the hair supple rather than straw-dry after ironing.
  • Biotin, niacinamide and panthenol: the vitamin side of the formula, alongside allantoin.
  • Hydrolyzed corn protein and hydrolyzed collagen: two proteins that give the gel its reinforcing side, with onion bulb and flaxseed extracts alongside.

What to expect

Hair comes out smoother, flatter and easier to blow-dry, with frizz reduced and movement kept natural. How straight it goes is in your hands: the gel acts for at least 40 minutes, and your ironing decides the rest, a softer natural finish or a flatter, sleeker one depending on the client. The drop in bulk is most obvious on the coarsest sections; the hairline softens rather than goes poker-straight. It is a professional smoothing service, not a permanent relaxer. On previously treated or very porous hair, SOS Protein Mask first helps the fibre take the service more evenly.

Who it is for

  • Coarse, resistant or wiry hair that needs real volume reduction
  • Curly to afro-textured hair being smoothed for manageability
  • Frizzy hair where a softer, natural finish is the goal
  • Clients moving away from glyoxylic-acid or formaldehyde services
  • Salons who want a gel format that lays onto unwashed hair in one pass

Who it is not for

  • Fine or fragile hair that does not need heavy reduction
  • Home users: the pack is marked professional use
  • Anyone who reacts to fragranced professional products, since the gel is perfumed
  • Anyone chasing slip at the brush: the gel wants a clean brush and a steady bowl, not a rushed hand

Professional tip

The at-least-40-minute act is where the service is won or lost, so let the strand test set your read on how long that particular head needs beyond the minimum. Because it goes onto unwashed hair, decant into a bowl and lay it in with a brush rather than working out of the neck, so you can see how evenly the gel is sitting from mid-length to ends. Keep your sections thin and your comb clean so nothing pools, and treat mid-lengths and ends as separate zones if the strand test shows uneven porosity.

How to use

Two ways to work this gel, both set out in full: the manufacturer's protocol exactly as it is written on the bottle, and the Brazilian salon method most stylists use in the chair, with this gel's own figures built into it.

Method A: Manufacturer method

  1. Do not wash the hair first: work on unwashed hair.
  2. Perform a strand test on chemically treated hair, and a skin-sensitivity test, before you begin.
  3. Apply the product strand by strand.
  4. Leave it to act for at least 40 minutes.
  5. Wet the hair and rinse the excess out.
  6. Remove excess water.
  7. Dry the hair.
  8. Flat-iron thin strands to seal.

Method B: The Brazilian method

This is the sequence Brazil Protein demonstrates in its own step-by-step service, with the label's numbers kept as the reference.

  1. Strand test. Always start here: it sets how long past the 40 minute minimum this head needs.
  2. Shake and prepare. Shake the bottle before use. Work on unwashed hair, so skip the clarifying wash that other systems open with; comb it tangle-free and mist it lightly with a water spray, which is how the brand primes the hair for better absorption.
  3. Section. Split into four to six even sections and clip them up.
  4. Decant and apply. Pour the gel into a bowl and lay it in strand by strand with a brush, then comb root to tip with a fine comb so every strand is coated and nothing pools at the roots.
  5. Process. The label sets a floor of at least 40 minutes; the brand's own step-by-step runs 40 to 60 minutes depending on the strand evaluation. Coarse, resistant or virgin hair sits longer, fine or porous hair closer to the minimum. Watch the hair, not the clock.
  6. Pre-rinse. Wet the hair and rinse out the bulk of the gel, roughly 80 percent in the brand's demonstration, then remove the excess water: this formula is rinsed before the iron, not sealed in wet.
  7. Dry. Dry with a hairdryer, smoothing as you go, in thin sections on medium heat. A full brushed blowout is not needed.
  8. Seal. Flat-iron thin, almost transparent strands until each one is sealed, moving evenly root to tip. This bottle does not print a sealing temperature; general Brazilian practice is to seal healthy hair around 200 to 230 C and to drop lower on fine or previously lightened sections, judged on the strand test.
  9. Cool and wash. Let the hair cool after the sealing pass, then wash it, the way the brand closes the service.
  10. Finish and aftercare. Work a little Brazil Protein Mix Brazilian Oil through the lengths, then move the client onto sulfate-free home care so the smoothing is not stripped back. This bottle does not print a no-wash window.
Safety: Professional use, external use only. Perform a strand test on chemically treated hair and a skin-sensitivity test before application. Strictly follow the product usage guidelines. In case of contact with the eyes, rinse with water in abundance. Apply to pregnant women only with medical approval. Keep out of the reach of children. Store in a cool place, protected from light. Contains fragrance. The misuse of this product and incorrect application are the sole responsibility of the professional.

Where it fits in the Brazil Protein range

Nano Gel Smoothing Gel is the service itself, the step you charge for; send the client home with the Brazil Protein Nutrition Power Home Care Duo to keep the result soft between appointments. If a client needs a different route, the Brazil Protein Bio Lamination Straightening Cream and Brazil Protein Bioplastia Vegan Straightening Cream run on the same cysteamine chemistry in a cream format, and Brazil Protein SOS Protein Mask is the reconstruction step for hair that needs rebuilding before or after a service.

In short

  • Professional smoothing gel with aloe vera for coarse, resistant and curly to afro-textured hair.
  • Cysteamine and cysteine reducer without malic acid, no glyoxylic acid or formaldehyde.
  • Onto unwashed hair, at least 40 minutes, then rinse, dry and flat-iron to seal.
  • 1 L backbar size; also in 300 ml and 120 ml, maintained with the Nutrition Power Home Care Duo.

Complete and maintain the system

Tools for the service

Frequently asked questions

How long do I leave Nano Gel on?

At least 40 minutes, in one pass, on unwashed hair. That figure is a floor rather than a fixed window: coarse, resistant or virgin hair sits longer and fine or porous hair closer to the minimum. A strand test before the service is what tells you where beyond 40 minutes that particular head belongs.

Do I apply it to wet or dry hair?

Unwashed. You skip the clarifying wash and work on unwashed hair, misted lightly with water for absorption the way the brand step-by-step shows, then apply the gel strand by strand and let it act. Only after the processing time do you rinse out the excess, remove the water, dry and flat-iron to seal.

Does it contain formaldehyde or glyoxylic acid?

No. The ingredient list carries no formaldehyde, no formaldehyde-releasing preservative and no glyoxylic acid anywhere on it. The smoothing comes instead from cysteamine and cysteine, which is a different route to the same job. That matters because formaldehyde and glyoxylic acid are the two chemistries salons are actively moving away from.

How is it different from Bio Lamination?

Both run on cysteamine and cysteine. Nano Gel is a gel that goes onto unwashed hair and processes in one pass of at least 40 minutes, built around aloe vera. Bio Lamination is a cream applied to damp hair with a 10 to 50 minute window. Choose by the format and application you prefer.

Can I use it on coloured or bleached hair?

Coloured and lightened hair is more porous, so a strand test is essential and it usually means a gentler sealing pass. Assess the condition first and, on compromised hair, consider a reconstruction step such as SOS Protein Mask before deciding to proceed. The pack also asks for a skin-sensitivity test before every service.

Is it vegan, and does it contain allergens?

It is not certified vegan, so we do not label it as such: the formula includes hydrolyzed collagen alongside the plant-derived proteins, and there is no vegan certification on the pack. The gel is fragranced, but the ingredient list does not declare any of the named fragrance allergens, so no single allergen is called out.

What temperature do I seal it at?

The pack does not print a sealing temperature, so we will not invent one. General Brazilian practice is to iron healthy hair around 200 to 230 C and to drop lower on fine or previously lightened sections. Let the strand test guide the exact setting, and seal thin strands until each one is smooth.

Need help with your order? Visit our customer service center and online shopping FAQ for delivery, payment and returns.

Brazil Protein Nano Gel Smoothing Gel 1 L

Item Number:
BPNG4492

299,95
249,95Incl. VAT
-16%
Price Excl. VAT206,57
In stock

Official dealer — 100% original
Rated 4.6/5 on Trustpilot*
Free delivery from €40 (BE & NL)
Order before 4 PM, shipped today*
Pay later or in 3x with Klarna
Secure and reliable payment
Reply within 24 hours
Easy returns*

Related products