Private Label Heartleaf Serum
The minimalist Korean botanical — one plant, 77% style, calm skin.
Pair it with these builds
Private Label Centella (Cica) Serum
Cica serums from calming water to standardized madecassoside — the K-beauty heritage active.
Private Label Toner Pads
The one-step format Gen Z actually finishes — pre-soaked pads with visible-before/after demos.
Private Label Cica Cream
The tiger-grass jar — madecassoside comfort for stressed skin.
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
Validate the assay in the matrix
The analytical method is proven on the finished product before it is used at release, because a method written for the raw material often does not carry over.
- 3
Run preservation and stability together
Both studies run against the finished matrix, across the temperature range of the destination market.
- 4
Build the buffer for capacity
The buffer system is chosen for how much acid or base it can absorb, not only for the pH it sets, so the window holds through storage.
Pack, claim and level options
- Percentage-claim builds (77% / 80% / 90%)
- Clear clinical bottle with minimal label
- Vegan-certified formula route
- Sensitive-skin patch-test data pack
Heartleaf serum rode the minimalist single-ingredient wave: houttuynia cordata extract at a big front-of-pack percentage, in a watery, fragrance-free base that sensitive-skin customers trust on sight. The SKU's power is its simplicity — the label is short and the claim is calm.
We source standardized houttuynia extract with consistent flavonoid content, because single-ingredient brands live and die by batch consistency. The 77%-style percentage claim is tied to the COA, and the bottle keeps the clear, clinical look the category expects.
In water, everything dissolves — including the problems
A water-based product is the simplest thing to make and the hardest thing to keep stable. Oxygen, light and trace metals all reach the actives directly, and there is no oil phase standing in the way to slow them down.
That is why protection here is built from three parts at once: the headspace, the pack and the chelation strategy. Remove any one and the shelf life falls to the weakest link in the chain.
Fluid routes and what each one has to protect
Each route below carries a different balance of preservative load, barrier requirement and sensory weight.
| Route | Barrier it needs | Where it fits |
|---|---|---|
| Biphasic | Two phases, shaken before use | Formats that need an activation step |
| Concentrated serum gel | Airless pump to handle the viscosity | High-load actives sold on a small dose |
| Two-chamber or mix-at-use | Separated phases until activation | Actives that cannot hold a shelf life in solution |
| Glycol-rich fluid | Modest barrier, higher water activity | Actives that need solubility more than protection |
What brands ask us about this category
What does heartleaf actually do?
Houttuynia is rich in flavonoids with documented calming and antioxidant behavior — the honest claim is comfort and balance, not treatment.
Why do percentage claims matter here?
Single-ingredient positioning lives on the number; we bind the label claim to batch COAs so retail audits never surprise you.
Can this anchor a full minimalist line?
Yes — toner pads and a cream with the same hero extract form a proven three-SKU capsule.
Why a fluid is checked against a sample, not a number
Assay and pH tell you whether the chemistry is right; they do not tell you whether the product looks the way the buyer approved. Colour and clarity are read against the retained Golden Sample.
Production runs on GMPC and ISO 22716 certified lines under manufacturing licence 粤妆20250206, traceable from raw material to carton on every batch.
Four levers on shelf life
Viscosity without heaviness
Fluids are thickened with polymers that leave no residue, because the texture is meant to disappear on application.
The pH window is narrower than solubility
The range where an active is stable is often tighter than the range where it dissolves. Both ends are verified at fill rather than assumed.
Trace metals at parts per million
Iron and copper catalyse oxidation far below the level any incoming specification would flag. A chelator is part of the design, not an optional additive.
Chelation is dosed, not added
Too little chelator leaves trace metals free to catalyse oxidation; too much can undercut the preservation system or shift the pH. The level is set against the water and the raw materials.
Formats, pack sizes and MOQ
Mixed-variant orders can split the stated MOQ across formats under one brand.
| Format / Specification | MOQ | Lead Time |
|---|---|---|
| Houttuynia cordata extract 77% serum, 50 ml | 1,000 pcs | 10–15 days |
| Heartleaf 90% + panthenol calm build, 50 ml | 1,000 pcs | 10–15 days |
| Heartleaf set (serum + toner pad) | 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.
The active system and its working levels
INCI names and typical levels reflect publicly documented formulation practice. All values are adjustable in your build.
| Ingredient (INCI) | Typical Level | Function & Benefit |
|---|---|---|
| Houttuynia Cordata Extract | 70–92% | Calming antioxidant base |
| Panthenol | 1–2% | Comfort support |
| Allantoin | 0.2–0.5% | Soothing smoothing |
Send the shelf life you need, not just the percentage
Tell us the market, the price tier and how long the product has to stay stable. We reply with the route that fits within 24 hours.