Deby Hair INDIAN: A comprehensive guide to the benefits and use of Indian hair straightening

Deby Hair Lisa Indian Smoothing Treatment: Complete Guide by Paris Liss

By Paris Liss — Hair smoothing experts for 25 years

After 25 years of expertise in professional hair smoothing and hundreds of clients treated, the Deby Hair Lisa Indian smoothing treatment is one of the few products we recommend with complete confidence. Why? Because it combines everything we always look for: a formaldehyde-free formula, customizable results, incomparable shine, and versatility on all hair types — from the finest to the most kinky.

This complete guide tells you everything about this smoothing treatment: its active ingredients, its benefits, its detailed professional protocol, and our exclusive expert tips you won't find anywhere else.

What is the Deby Hair Lisa Indian smoothing treatment?

The Deby Hair Lisa Indian smoothing treatment is a latest-generation smoothing treatment, formulated without formaldehyde or derivatives. It is the first smoothing treatment in the world to combine three complementary hair technologies in a single formula: vegetable protein, tannin, and Indian Amla oil. This unique combination allows it to act simultaneously on the structure, nutrition, and shine of the hair fiber.

Thanks to its nanotechnology, the active ingredients penetrate deep into the hair fiber much more profoundly than a classic smoothing treatment — for a smooth, shiny, and sheathed result that lasts for several months.

Key active ingredients of the Deby Hair Lisa Indian smoothing treatment

Amla Oil (Emblica Officinalis) The star active ingredient of Indian hair cosmetics, used for millennia in Ayurvedic tradition. It strengthens the hair fiber from within, promotes growth, prevents hair loss, and provides incomparable natural shine. This is the ingredient that gives the Deby Hair Lisa Indian smoothing treatment its authentic Indian signature and its superiority over classic Brazilian smoothing treatments.

Argan Oil Rich in essential fatty acids and vitamin E, Argan oil moisturizes, repairs, and protects hair fiber weakened by chemical treatments and thermal damage. It provides lasting suppleness and shine after each application.

Macadamia Oil Concentrated in monounsaturated fatty acids, it deeply nourishes, strengthens the hair fiber's hydrolipidic film, and durably softens even the most unruly and thick hair.

Murumuru Butter Originating from the Amazon, this rare butter strengthens, repairs damaged areas, and provides an unparalleled velvety feel. It is particularly effective on kinky and very thick hair.

Vegetable Proteins + Tannin The protein + tannin combination rebuilds the fiber from within, coats each strand, and provides a lasting and natural smoothing effect — without stiffening or weighing down the hair.

Who is the Deby Hair Lisa Indian smoothing treatment for?

The key advantage your competitors don't mention

The Deby Hair Lisa Indian smoothing treatment is one of the rare professional smoothing treatments that does not require a clarifying shampoo before application. Unlike classic Brazilian smoothing treatments, an ordinary shampoo is sufficient — which simplifies the protocol, reduces salon time, and better preserves the hair fiber.

Complete professional protocol — Paris Liss Version

Step 1 — Preparation and diagnosis

First and foremost: perform a strand test. Apply a small amount of product to a strand, leave on for 30 minutes, rinse, and dry. If the strand breaks easily or appears very elastic, strengthen the fiber first before applying the smoothing treatment.

Wash hair 2 times with an ordinary shampoo (not necessarily clarifying). Towel dry, keeping hair slightly damp. Do not apply conditioner.

Step 2 — Application

Divide hair into 4 to 6 sections, starting from the nape of the neck. Apply the Deby Hair Lisa Indian smoothing treatment strand by strand, 1 cm from the scalp. Use a fine-tooth comb to remove excess product and ensure even distribution.

Step 3 — Processing Time

Leave on for 30 to 60 minutes depending on hair resistance and thickness. For very resistant or thick hair, feel free to leave on for up to 1 hour. You can cover the hair with cellophane to optimize the penetration of active ingredients.

Step 4 — Rinsing

• Natural, color-treated, or normal hair: rinse to 70% — keep some product to enhance thermal smoothing
• Bleached or very sensitized hair: rinse to 100% to avoid any risk of weakening

Do not shampoo again after rinsing.

Step 5 — Blow Dry

Completely dry the hair with a blow dryer and a flat brush, creating a smooth blow-dry. This step is essential to activate shine and prepare the fiber for flat ironing.

Step 6 — Flat Iron

Flat iron very thin strands. Emphasize passes at the roots and lighten on the lengths and ends to avoid dryness.

Number of passes:

• Natural, thick, very resistant hair: 10 to 15 passes
• Color-treated or normal hair: 8 to 12 passes
• Fine or sensitized hair: 5 to 8 passes

Recommended temperatures:

• Bleached or very sensitized hair: 180°C maximum
• Color-treated or fine hair: 200-210°C
• Natural, thick, resistant hair: 230-250°C

Our exclusive Paris Liss expert tips

These tips are the result of 25 years of experience with this smoothing treatment — you won't find them anywhere else.

💡 For an ultra-glossy result: finish the smoothing treatment with a dab of Keraboost Paris Liss on the lengths — guaranteed mirror-like shine.

💡 For highlighted or blonde hair: combine the Deby Hair Indian smoothing treatment with an anti-yellow purple treatment to avoid unwanted brassy tones.

💡 To customize the smoothing effect: if your client wants to maintain some natural movement, reduce the number of flat iron passes to 5-8 instead of 12-15. The Deby Hair Lisa Indian smoothing treatment is entirely customizable according to the desired result.

💡 For very damaged or very elastic hair: apply Bioplex Minoa to clean, damp hair without rinsing, then apply the smoothing treatment over it. This combination significantly strengthens the fiber before treatment.

⚠️ Color Warning: Protein-based smoothing treatments can slightly lighten color-treated hair (1 to 2 shades). Always inform your client before application. Always color after the smoothing treatment, never before.

Aftercare for Deby Hair Lisa Indian smoothing treatment

To maximize the duration and quality of your smoothing treatment:

• Wait 24 to 48 hours before the first shampoo
• Use only a sulfate-free shampoo — Paris Liss Crystal Care shampoo is ideally formulated for post-smoothing maintenance
• Avoid ties, clips, and elastic bands for the first 48 hours
• Sleep with hair down for the first 2 nights
• Apply a sulfate-free mask once a week to prolong shine

How long does the Deby Hair Lisa Indian smoothing treatment last?

The result lasts an average of 3 to 6 months depending on hair type, washing frequency, and maintenance products used. With a suitable post-smoothing routine (sulfate-free shampoo + mask), the duration can extend up to 8 months on certain hair types.

❓ FAQ — Frequently Asked Questions

Is a clarifying shampoo absolutely necessary before the Deby Hair Indian smoothing treatment? No — this is one of the particularities of this smoothing treatment. An ordinary shampoo is sufficient. Clarifying shampoo is not necessary because this smoothing treatment uses proteins and tannin, not organic acids.

Can I color my hair after the smoothing treatment? Yes, but wait at least 15 days after the smoothing treatment. Always color after the smoothing treatment, never before.

Is the Deby Hair Indian smoothing treatment suitable for very bleached hair? With caution. First strengthen the fiber with Bioplex Minoa, do not exceed 180°C with the flat iron, and rinse to 100%. For very fragile hair, several treatment sessions may be necessary before smoothing.

How many applications can I get from 1L of product? Approximately 15 to 20 full applications depending on hair length and thickness.

Can I combine Deby Hair smoothing with a Hair Botox? Yes — Deby Hair's Lisa Indian Hair Botox is the ideal complement. You can use it between two smoothing treatments to maintain the result or mix a small amount with the smoothing treatment to enhance reconstruction.

Is this smoothing treatment compatible with pregnancy? Yes, the Deby Hair Lisa Indian smoothing treatment is formulated without formaldehyde or derivatives — compatible for pregnant or breastfeeding women. However, consult your doctor before any use during pregnancy.