Labo h Strengthening
LABO H Strengthening covers 44+ scalp and hair strengthening products from the Korean haircare brand LABO H. The range is built around scalp strengthening as a first principle - shampoos in multiple sizes (400ml, 700ml, 750ml, refill formats), a scalp treatment, an ampoule tonic, a capsule treatment, a probiotics shampoo variant, and a 75ml hair strengthening essence. All are formulated with scalp health as the starting point, recognising that strong hair begins at the scalp.
By Skinsli editorial Updated
Buying guide
LABO H Scalp Strengthening: A Complete Buying Guide
LABO H is a Korean haircare brand focused on scalp strengthening as the foundation of hair health. Its strengthening range at skinsli covers 44+ products - multiple shampoo sizes and refills, scalp treatments, an ampoule tonic, a capsule treatment, and a hair strengthening essence. This guide covers the key product formats, how they differ, and how to build a complete scalp-strengthening routine.
Why LABO H starts with the scalp
LABO H's approach to haircare starts at the scalp - the living tissue from which each hair follicle grows. Hair shaft products (masks, conditioners, serums for the lengths) address only the already-formed portion of the hair, which is dead protein. The follicle and scalp are where growth, thickness, and long-term hair health are determined. Scalp strengthening means supporting follicle health, reducing scalp inflammation that interrupts the growth cycle, and maintaining the scalp's microbiome and barrier.
The LABO H range reflects this: most products target the scalp (shampoos, scalp treatment, ampoule tonic, capsule treatment) with one hair-length product (hair strengthening essence 75ml). The scalp focus is not a gap in the range - it is intentional positioning.
Scalp Strengthening Shampoo: sizes, refills, and probiotics variant
LABO H's Scalp Strengthening Shampoo is the daily cleansing anchor of the range. It is available in four size formats: 400ml (standard), 700ml, 750ml, and refill formats at 400ml and 333ml. The 700ml and 750ml sizes are large format for infrequent restocking; the 400ml is a practical regular purchase. The refill formats reduce packaging and cost per ml on repeat purchases.
A Probiotics Scalp Strengthening Shampoo variant adds a live or stabilised probiotic component for scalp microbiome support. The scalp microbiome research area has grown significantly - probiotics in topical haircare aim to maintain the balance of microorganisms on the scalp that protects against yeast-driven dandruff and excess inflammation. For scalps with persistent microbiome-related issues (dandruff, sensitivity, itchiness), the probiotics variant is the stronger choice.
Scalp Strengthening Treatment 200ml: the intensive leave-on treatment
The Scalp Strengthening Treatment at 200ml is the rinse-off or leave-on intensive treatment in the LABO H range. At 200ml it is sized for weekly or twice-weekly treatment use rather than daily application. Korean scalp treatments in this format typically work as intensive conditioning masks for the scalp itself - applied after shampooing, left for 5-10 minutes, then rinsed.
Use it weekly after your regular scalp shampoo. Apply section by section to the exposed scalp, massage gently, cover with a shower cap for 5-10 minutes, and rinse. The 200ml size gives approximately 8-10 weekly sessions. It complements daily shampoo use rather than replacing it.
Scalp Strengthening Ampel Tonic 100ml: targeted scalp treatment between washes
The Scalp Strengthening Ampel Tonic at 100ml is a leave-on scalp treatment applied between wash sessions. "Ampel" is a brand name for LABO H's ampoule-tonic format - a concentrated liquid applied directly to the scalp at targeted zones. At 100ml it is a smaller format than the treatment, designed for targeted use at specific scalp areas.
Apply 5-8 drops directly to the scalp at areas of concern - a thinning hairline, a dry or flaky zone, or where you notice most breakage. Massage in gently with fingertips. Use 3-5 times weekly between wash days. Leave in without rinsing. At 100ml with 5-8 drops per application, the bottle gives 12-20 sessions.
Scalp Strengthening Scalpel Capsule Treatment 220ml
The Scalp Strengthening Scalpel Capsule Treatment at 220ml is the most distinctive format in the LABO H range. Capsule treatments in Korean haircare typically come in a dual-chamber or encapsulated formula where active ingredients are kept separate until application - they activate on contact with the scalp. The Scalpel name suggests a precision-delivery mechanism.
Apply to the scalp section by section, following the product's directions for activating the capsules (typically shaking or pressing to break the capsule barrier). Massage in and leave for the indicated contact time. The 220ml size is intended for a regular treatment cycle rather than a single session. This is the premium treatment step in the LABO H Strengthening range.
Hair Strengthening Essence 75ml: treatment for the hair lengths
The 75ml Hair Strengthening Essence is the only length-focused product in the LABO H Strengthening range - it addresses the hair shaft itself rather than the scalp. At 75ml it is a leave-on essence applied to the mid-lengths and ends. Hair essences in Korean haircare typically contain a combination of conditioning agents, proteins, or heat-protection actives that coat the strand for improved smoothness, reduced frizz, and protection against styling damage.
Apply 3-5 drops to towel-dried hair, working through mid-lengths and ends. Do not apply to the scalp - keep it on the hair shaft only. Style as normal after. For hair that is healthy at the root but damaged at the ends (a common pattern in hair with regrowth), this essence addresses the older, more damaged portion that scalp-focused products cannot reach.
Building a complete LABO H Strengthening routine
A complete weekly routine: wash day (2-3 times weekly) - LABO H Scalp Strengthening Shampoo (or Probiotics variant) → rinse → Scalp Strengthening Treatment 200ml on the scalp for 5-10 minutes → rinse → on towel-dried hair: Hair Strengthening Essence 75ml on mid-lengths and ends. Between wash days (daily or alternate): Scalp Strengthening Ampel Tonic 100ml at targeted scalp zones, leave in.
Monthly intensive step: Scalp Strengthening Scalpel Capsule Treatment 220ml on a wash day in place of (or after) the standard treatment. The capsule treatment provides a higher-dose intervention for the scalp on a less frequent schedule. This full routine stack covers scalp cleansing, scalp treatment, scalp tonic maintenance, and hair-length care across a balanced weekly schedule.
Choosing the right shampoo size for your washing frequency
The LABO H Scalp Strengthening Shampoo comes in four active sizes. At 2-3 washes per week with a standard amount per wash, each size lasts approximately: 400ml - 2-3 months; 700ml - 4-5 months; 750ml - 4-5 months. Refill 400ml and 333ml formats are for existing LABO H shampoo bottle owners who want to reduce plastic packaging.
For first-time buyers, the 400ml is the recommended starting size to confirm the formula suits your scalp before committing to a larger quantity. Once you have established it works for your scalp type, the 700ml or refill format offers a lower cost per ml and fewer reorder intervals. The Probiotics variant is available in 400ml only.
FAQ
Frequently asked questions
FAQ
Frequently asked questions
Should I buy the LABO H Scalp Strengthening Shampoo in 400ml or 700ml?
Start with the 400ml if this is your first LABO H purchase - it gives you 2-3 months of use (at 2-3 washes per week) to confirm the formula suits your scalp before committing to a larger size. Once you have established it works for you, the 700ml or 750ml reduces the cost per ml and minimises how often you need to reorder. The refill formats (400ml and 333ml) are the most economical on repeat purchases if you want to reuse an existing bottle.
Is the LABO H Probiotics Scalp Strengthening Shampoo effective for dandruff?
The Probiotics variant is specifically formulated for scalp microbiome support, which addresses the yeast-overgrowth component of seborrheic dandruff. Research on topical probiotics for scalp conditions is growing and shows benefit for inflammatory scalp conditions linked to microbiome imbalance. For dandruff caused by Malassezia yeast overgrowth, the probiotics shampoo is the better choice over the standard variant. For dry-scalp dandruff (not yeast-related), both the standard and probiotics versions are equally appropriate. Use consistently for 4-6 weeks before assessing results on dandruff frequency.
Can the Scalp Strengthening Ampel Tonic 100ml be used every day between washes?
Yes - the Ampel Tonic is designed for between-wash application. Daily or near-daily scalp application of 5-8 drops is appropriate for consistent scalp treatment. Focus the application on areas of concern (thinning zones, flaky areas, where breakage starts at the root). The leave-on formula absorbs into the scalp without needing to be rinsed and does not create buildup at these application volumes. At 5-8 drops daily, the 100ml bottle lasts approximately 12-20 sessions - plan on monthly reorders for daily use.
How often should I use the Scalp Strengthening Scalpel Capsule Treatment 220ml?
Once monthly or as a bi-weekly intensive step on wash days is the practical frequency for a capsule treatment of this type. It is a higher-dose intervention not designed for daily use. Apply on a wash day after shampooing, following the product's capsule activation method, massage into the scalp, leave for the indicated time, then rinse. Between monthly capsule sessions, the Scalp Treatment 200ml covers the regular weekly intensive step, and the Ampel Tonic covers daily maintenance. This three-tier structure gives the capsule treatment its proper role as the monthly deep-treatment anchor.
Does the LABO H Hair Strengthening Essence 75ml protect hair from heat styling?
The Hair Strengthening Essence is a conditioning and strengthening treatment for the hair lengths. Whether it provides meaningful heat protection depends on the specific formula - heat protection typically requires silicones or film-forming agents that coat the hair and absorb heat. The product's name emphasises strengthening rather than heat protection. Apply it before styling as part of your routine; if heat protection is a specific concern, confirm the ingredients include heat-protective agents or use a dedicated heat protectant spray alongside the essence.
How many LABO H strengthening products are at skinsli?
Skinsli stocks 44+ LABO H Scalp Strengthening products, including shampoos in multiple sizes (400ml, 700ml, 750ml) and refill formats, the Scalp Strengthening Treatment 200ml, Ampel Tonic 100ml, Scalpel Capsule Treatment 220ml, Probiotics Shampoo 400ml, and the Hair Strengthening Essence 75ml. All are authentic Korean imports shipped from the US warehouse.
Is the LABO H Scalp Strengthening Shampoo suitable for sensitive or itchy scalp?
The Scalp Strengthening Shampoo is formulated with scalp health as a priority, which typically means avoiding harsh sulfates and known scalp irritants. For sensitive or itchy scalps, the shampoo's strengthening focus addresses the scalp barrier, which underpins sensitivity - a stronger, healthier scalp barrier is less reactive to irritants. The Probiotics variant adds a microbiome-support layer that further reduces inflammation-driven itchiness. Patch-test on a small scalp section for 24 hours if you have a history of scalp reactions to new products. Most users with scalp sensitivity find strengthening-focused formulas more comfortable than aggressive clarifying shampoos.
What is the difference between the Scalp Strengthening Treatment 200ml and the Ampel Tonic 100ml?
The Treatment 200ml is a weekly rinse-off mask for the full scalp - applied after shampooing, left on the whole scalp for 5-10 minutes, then rinsed out. The Ampel Tonic 100ml is a leave-on between-wash treatment applied at targeted scalp areas in drop amounts, not rinsed. Both strengthen the scalp, but at different frequencies, application volumes, and contact times. Use the Treatment as your weekly intensive step on wash days; use the Tonic daily or near-daily between washes on specific concern areas. They complement each other rather than overlap.

















