Approximately 2–3 months. The perm style itself does not change or collapse — rather, as the hair grows out the overall style changes, and the curls are gradually cut away with each haircut.
A. Virgin Resistant Hair
B. Virgin Hair
C. Colored Hair
D. Color Damaged Hair
E. Bleached Hair
F. Bleached Damage Hair
G"Temperature may vary depending on the machine, and it should be adjusted based on the moisture level of the hair. In general, higher temperatures are recommended for healthy hair, while lower temperatures should be used for damaged hair.
Moisture level: approximately 25% (towel-dried, damp hair).
*Based on Wave Master
*For winding 3 turns or more
140°C for 8 minutes → 80°C for 10 minutes (Healthy to slightly damaged hair: A, B, C) 120°C for 8 minutes → 60°C for 10 minutes (Moderately to severely damaged hair: D, E, F, G, H)
*For winding 2 turns or less (or thin/low-density hair)
80°C for 8 minutes → 140°C for 5 minutes (Healthy to slightly damaged hair: A, B, C) 60°C for 8 minutes → 120°C for 5 minutes (Moderately to severely damaged hair: D, E, F, G, H)
Please note that temperature and processing time may vary depending on the hair condition."
Curl or straight treatments can generally be performed on hair previously treated with hot perms or cold perms.
However, on hair treated with keratin protein or similar coating-based treatments, straightening is possible but wave/curl treatments may not be suitable depending on the hair condition.
"Recommended flat iron temperature for straightening:
A, B, C: 170°C D, E, F, G, H: 160°C
Moisture level: fixed at 10%."
Same guidelines as Q4 apply.
Temperature should be adjusted per machine and moisture level: - Healthier hair → higher temperature / more moisture - Damaged hair → lower temperature / less moisture
"If volumizing refers to a natural C-curl perm, the lasting duration is approximately 1–3 months for both short and long hair, depending on hair elasticity and damage level.
The choice between hot perm and cold perm should be made based on the client's hair type, damage level, and desired longevity."
"In case of a failed treatment: - Healthy hair: re-treatment possible on the same day - Damaged hair: recommend waiting 1 week or more
Suitable product depends on the nature of the failure (e.g., curl dropped, over-softening, etc.).
For regrowth retouching: - Cold perm: every 2–3 months - Hot perm: every 4–6 months
If the curl on previously permed hair is still intact, treating only the new growth is sufficient."
"Key advantages of TOS-STEA: - Hair-corrective action, hair biome support, phyto-cuticle and other plant-based ingredients - 2-phase oil and Vitamin C in the 2nd step for superior moisture vs. standard hydrogen peroxide
Marketing approach: Highlight the alkalinity level upfront so clients and stylists can clearly understand the strength of the perm agent, enabling precise product selection and minimizing hair damage."
"Only ingredients certified by the Korean FDA are used.
Formulated as much as possible with plant-based ingredients aligned with the product concept — contains no formaldehyde.
Unlike keratin clinic treatments, no smoke is generated during the process, and there is no eye irritation or burning sensation whatsoever."
Advantages include ease of use, minimal damage, enhanced results through moisturizing and specialty ingredients, and full customization capability.
Uses premium ingredients such as TOS-STEA."
Ampoule: Scalp care and hair loss relief Tonic: Scalp soothing, exfoliation, and hair loss reduction → A healthy scalp is the foundation for healthy hair growth.
Biome Shampoo (3 variants): Mildly acidic, uses natural surfactants — cares from scalp to ends Water Treatment: Silicon-free; stabilizes scalp and hair pH balance and provides moisture → Daily scalp and hair care
Curl Cream: Maintains curl shape, adds moisture, enhances curl elasticity Soft Wax: Stronger hold than curl cream — use when firmer curl definition is desired Oil: Adds shine and moisture to hair Volumizer: Boosts volume during blow-drying, increases hold, helps with hair loss → Styling to maintain the look
1. After straightening, it is not recommended to tie the hair tightly with rubber bands. The hair needs approximately 48 hours to fully stabilize after oxidation. Applying physical stress before stabilization may cause creases — if tying is necessary, use a loose tie only.
2. Pool and seawater dry out and damage hair. Wearing a swim cap is recommended. If exposed without a cap, apply a treatment, leave it on for a while, then rinse thoroughly."
"Avoid alkaline shampoos containing sulfates — they cause hair to lose its shape and curl elasticity, shortening perm longevity.
Recommended: - Mildly acidic shampoo → SOTE full product line - Curl cream → to maintain elasticity"
"When there is a significant difference in damage level between virgin and treated hair, the chemical agent applied to healthy hair may run down and cause excessive damage at the boundary zone, potentially leading to breakage.
However, SOTE's agent for healthy hair (pH 5.5) has a thick, creamy texture that prevents dripping and ensures clean application.
If precise application is difficult, apply pH 0.0 first to the boundary zone and damaged hair, then apply pH 5.5 to the curly/resistant area — this prevents breakage while achieving the straightening result."
"To form curl/wave, the agent must contain a reducing agent capable of breaking S–S bonds.
SOTE perm agents: - 5.5: Alkaline / Thio + Cysteamine base - 3.5: Alkaline / Thio base - 0.0: Acidic / Thio + Cysteamine + Cysteine base
All three variants can be used for both straightening and wave/curl formation."
"Keratin treatments primarily work through protein replenishment and surface coating, offering surface improvement but limited structural bond change — hence shorter longevity.
Nanoplasty treatments use acidic conditions and heat reactions to partially affect internal hair bonds, resulting in longer-lasting effects compared to keratin.
SOTE products are acidic perm agents (acid straight category) that work through reduction reactions to alter the S–S (disulfide) bonds within the hair.
Rather than a simple coating effect, SOTE achieves shape formation through S–S bond breaking and reformation.
SOTE is more accurately understood as a chemical reduction + heat-based structural change system, rather than a 'nano particle technology' product."
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