Private Label Split-End Repair Serum
A cosmetic seal for the ends — fiber-binding films that make splits look sealed until the next wash.

Order quantities by pack size
Mixed-variant orders can split the stated MOQ across formats under one brand.
| Format / Specification | MOQ | Lead Time |
|---|---|---|
| Split-end sealing serum 50 ml comb-nozzle | 1,000 pcs | 10–15 days |
| Twist-pen targeted repair 10 ml × 2 | 1,000 sets | 10–15 days |
| Ends-repair + trim-guide insert set | 1,000 sets | 10–15 days |
MOQ and lead time above are the standard liquid, cream and gel route. The real minimum is set by the manufacturing system rather than the category: surfactant systems (shampoo, body wash) start at 2,000 pcs, stick formats at 3,000, and powders and sheet masks at 5,000 — with longer production runs to match.
Documentation that ships with the order
Every production order leaves with a certificate of analysis, a stability summary, a microbiology report and MoCRA / CPNP-ready documentation, produced on GMPC and ISO 22716 certified lines under licence 粤妆20250206.
Because a fluid gives its actives nowhere to hide, the retained Golden Sample is kept for clarity and colour, which is what a batch is checked against alongside the assay.
Split ends cannot be truly repaired — the honest, review-safe claim is 'seals the appearance of splits between trims'. The chemistry is fiber-binding films and protein deposits that glue the split visually and smooth the fray, and customers happily pay for that interim fix.
Builds run higher film loads than daily serums with targeted applicators (comb-nozzle or twist-pens) so product goes to the last two centimeters only. Packaging novelty here is functional, not gimmick — it prevents waste and over-application.
Stability and shelf-life questions
Can any product truly repair splits?
No — that claim invites returns. 'Seals the look of split ends until your next trim' is both true and what the category leaders actually say.
Why targeted applicators?
Ends-only dosing prevents root grease and stretches the bottle — customers get a full lifecycle from one unit, which shows in repeat rates.
Does it work with heat styling?
Yes; the sealing films are heat-stable to typical iron temperatures, and we verify that in the protocol.
The actives and the levels they work at
INCI names and typical levels reflect publicly documented formulation practice. All values are adjustable in your build.
| Ingredient (INCI) | Typical Level | Function & Benefit |
|---|---|---|
| Polyquaternium-28 class | 2–3% | Fiber-binding seal film |
| Hydrolyzed Keratin | 1–2% | Fray-fill protein deposit |
| Cetearyl Ethylhexanoate | 10–20% | Ends-focused emollience |
Other fluid systems we manufacture
Private Label Hair Serum
The smoothing authority — film systems that shut down frizz in humid climates.
Private Label Split-End Guard Mist
Prevention before the split happens — a daily mist that keeps ends intact longer.
Private Label Hair Mask
The weekly intensive that photographs as luxury — rich treatments with measurable results.
Buyer guides for this build
Before you brief a supplier on this category, these are the guides that answer the questions buyers ask next — timelines, order quantities, cost structure and compliance.
From brief to released fluid, step by step
- 1
Dissolve in order of solubility
Ingredients go in by solubility rather than convenience, since the order affects both dissolution and how the system behaves afterwards.
- 2
Choose the barrier pair
Oxygen and light barriers are selected together with the pack, since either one alone leaves an oxidation route open.
- 3
Screen solubility at the cold end
The batch is cooled to the coldest shelf it will meet and checked for haze, which is where an overloaded solubiliser system shows itself.
- 4
Verify against the retained sample
Assay, pH and appearance are checked at release against the sample your buyer approved.
Where this formula can be adjusted
- Comb-nozzle or twist-pen applicators
- Honest claim-wording pack
- Between-trims positioning inserts
- Salon-channel pro sizes
The number that matters is the assay at the end of shelf life
A fluid can leave the factory at full strength and arrive at month twenty-four below it, because degradation is continuous and invisible until something changes colour. The specification is therefore written against the end of the shelf life, not the day of fill.
That is what sets the overage, and the overage is what sets the cost. A formula that loses a few per cent a year is managed differently from one that holds its level, and the difference shows up in the price per unit.
Fluid bases and what each one can carry
Two fluids can look identical in the bottle and behave completely differently by the end of the shelf life.
| Route | Barrier it needs | Where it fits |
|---|---|---|
| Biphasic | Two phases, shaken before use | Formats that need an activation step |
| Structured gel | Chelator with no oil phase to protect | Treatment and gel-adjacent formats |
| Buffer-controlled fluid | Standard pack, tight pH control | Actives that only work in a narrow pH window |
| Simple aqueous | Chelator plus an opaque or UV-filtered pack | Stable actives in high-volume lines |
What gets decided before the preservative system
Compatibility between actives
Two actives that work alone can destabilise each other in the same bottle. Combinations are tested rather than assumed.
The assay method is part of release
A method that works on the raw material can fail inside the finished matrix. It is validated against the product as filled before it is used at release.
Buffers steady the pH window
A buffer slows drift but adds its own ionic load, which can shift viscosity and compatibility. It is chosen with the rest of the system rather than bolted on.
Preservation in a water-rich base
High water activity calls for a preservation study against the finished matrix, not a calculation from the raw material list.
Bring the claim and the climate
Where the product will be stored decides the barrier. Send the destination market and we quote against it within 24 hours.