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WHY AMINO ACIDS ARE THE FUTURE OF HAIR REPAIR

May 2025 6 min read By Honeymoon Professional Team
Healthy, repaired hair strands close-up

Hair is made of protein — specifically, a protein called keratin. And keratin is made of amino acids. This is not just a biology lesson: it is the key to understanding why some hair treatments work deeply and others only sit on the surface. When you repair hair with amino acids, you are working with the same raw material the hair is made of.

~95% of hair fiber is made of keratin protein
18+ amino acids found naturally in healthy hair
pH 2–3 the working pH of the Amino Blend Realinhamento Térmico for deep fiber alignment

WHAT ARE AMINO ACIDS AND WHAT DO THEY DO FOR HAIR?

Amino acids are the molecular building blocks that link together to form proteins. In hair, they are responsible for the structure, strength, and flexibility of each strand. When hair is damaged — by heat, chemical treatments, UV exposure, or mechanical stress — the protein chains inside the cortex break down. The strand becomes weaker, more porous, and more prone to breakage and frizz.

When you apply amino acids topically in a hair product, they can penetrate the hair shaft and fill in the gaps left by protein loss. This is fundamentally different from a silicone-based product, which coats the outside of the strand but does not address the internal damage. Amino acid treatments work from the inside out.

HYDRATION VS. PROTEIN: UNDERSTANDING THE BALANCE

One of the most common mistakes in hair care is treating all damage the same way. Hair that is protein-deficient behaves differently from hair that is moisture-deficient — and applying the wrong treatment can actually make things worse. Protein-deficient hair feels limp, stretchy, and breaks easily. Moisture-deficient hair feels dry, brittle, and rough to the touch.

The Honeymoon Amino Blend line addresses both simultaneously. Its amino acid complex supports hydration, structure strengthening, color protection, and surface damage repair — working on multiple levels of the hair fiber at once. This is why the Máscara pH Amino Blend is formulated at pH 4.0–5.0: it stabilizes and returns the hair to its natural pH after treatment, closing the cuticle and locking in the amino acid benefits.

The pH connection: After any chemical treatment — relaxers, coloring, bleaching, or thermal realignment — the hair's pH is temporarily elevated. This keeps the cuticle open and the fiber vulnerable. The Máscara pH Amino Blend is specifically designed to bring the pH back to the 4.0–5.0 range, sealing the cuticle and stabilizing the fiber after the treatment is complete.

THE AMINO BLEND LINE: HOW IT WORKS

The Amino Blend collection is built around a two-phase approach: the Realinhamento Térmico (Thermal Realignment) for professional in-salon treatment, and the Máscara pH for post-treatment stabilization and ongoing maintenance. Together, they form a complete system for reducing volume, aligning the fiber, and maintaining the results over time.

Realinhamento Térmico Amino Blend

This is the professional-use product that reduces volume and aligns the hair fiber. Applied section by section from the root, it works with a pause time of 20 to 40 minutes depending on the hair's structure, then is rinsed and sealed with a flat iron at 180°C to 190°C. Its actives — amino acids and Liss Repair — work together to restructure the fiber from within while the thermal step seals the result.

Máscara pH Amino Blend

The pH mask is the maintenance step — used both immediately after the thermal realignment and as a regular weekly treatment. Applied after washing, left for 3 minutes, and rinsed completely, it stabilizes the hair's pH, reinforces the amino acid treatment, and keeps the cuticle sealed between salon visits.

WHY YOU NEED A DETOX SHAMPOO BEFORE TREATMENT

Before any intensive amino acid treatment, the hair needs to be clean — not just of dirt, but of product buildup, mineral deposits from hard water, and residual silicones that can block the actives from penetrating the fiber. This is the role of the Shampoo Detox Amino Blend.

A detox shampoo opens the cuticle slightly and removes the barriers that would otherwise prevent the amino acids from reaching the cortex. Think of it as preparing the soil before planting: the treatment will only work as well as the preparation allows.

THE IMPORTANCE OF THE STRAND TEST

One of the most important — and most often skipped — steps in professional hair treatment is the strand test. Before applying the Realinhamento Térmico Amino Blend to the full head, a small section from the lower nape area should be tested with the full process. This confirms the correct processing time for that specific hair type and ensures the fiber is intact and healthy enough for the treatment.

The strand test also helps prevent hair loss and breakage — a critical safety step that Honeymoon's technical documentation explicitly recommends for all progressive and definitive brushing procedures.

WHY AMINO ACIDS REPRESENT THE FUTURE

The hair care industry is moving away from heavy silicones and formaldehyde-based straighteners toward treatments that work with the hair's own biology. Amino acids are at the center of this shift — they are biocompatible, effective, and capable of delivering results that last because they address the actual cause of damage rather than masking it.

The Honeymoon Amino Blend line represents this philosophy in practice: professional-grade amino acid technology, designed for real-world conditions, available both in-salon and for home maintenance.

THE AMINO BLEND ROUTINE

Professional treatment + at-home maintenance for lasting results.

01
Amino Blend

Shampoo Detox

Removes buildup and opens the cuticle for maximum active penetration.

02
Amino Blend

Realinhamento Térmico

Professional in-salon treatment. 20–40 min pause, then flat iron at 180–190°C.

03
Amino Blend

Máscara pH Amino Blend

Immediately post-treatment and weekly. 3 minutes, rinse completely.

04
Liss Repair

Fluido Termoativo (Maintenance)

Protect your results with heat protection before every blow-dry.

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