Start from the formula, not the look
The single biggest driver of the right pack is what's inside: viscosity, active sensitivity, fragrance/solvent load and whether the product is leave-on or rinse-off. Get the material and closure right first, then optimize for brand and shelf.
Quick logic: low-viscosity + clear → PET/PETG bottle with pump or dropper · thick cream → wide-mouth jar or airless pump · opaque chemical-rich → HDPE bottle · spray → mist/sprayer neck (20/24 mm).
Decision table: application → specification
| Application | Material | Bottle / closure | Typical capacity | Why |
|---|---|---|---|---|
| Facial serum / essence | PET / PETG | Dropper or treatment pump, 18–24 mm neck | 15–60 ml | Clear, light, good barrier; PETG adds drop resistance. |
| Facial oil / oil blend | PETG / PET | Dropper, amber or frosted option | 15–50 ml | Clarity + toughness; amber/frosted protects light-sensitive oils. |
| Cream / mask (thick) | PETG / PET jar | Wide-mouth jar, PP cap, 40–70 mm neck | 15–100 ml | Easy scooping; airless pump alternative for oxygen-sensitive formulas. |
| Lotion / body milk | HDPE / PET | Lotion pump, 20–28 mm neck | 100–300 ml | HDPE resists surfactants; PET for clear premium lines. |
| Toner / facial mist | PET | Sprayer or flip-cap, 20–24 mm neck | 100–250 ml | Clear, light, good gas barrier; sprayer for mists. |
| Sunscreen / SPF | HDPE | Lotion pump or tube, 50–200 ml | 50–200 ml | Opaque protects UV actives; surfactant/solvent-safe. |
| Shampoo / body wash | HDPE | Flip-cap or pump, 28 mm neck | 200–1000 ml | Best chemical resistance; squeezable; lowest cost at scale. |
| Pharma / health tonics | PET | Child-resistant cap, 28–38 mm neck | 100–500 ml | Clear, inert, food-grade; CRC cap where required. |
Scenario deep-dive
Serums & essences
Low viscosity, often active-rich
- PET for clear, glass-like look; PETG where drop-resistance and premium feel matter.
- 15–60 ml; dropper for precise dose, treatment pump for larger.
- Pick 18–24 mm neck to match standard droppers.
Creams & masks
High viscosity, scoop or pump
- Wide-mouth PET/PETG jar (15–100 ml) with PP cap for scooping.
- Airless pump (PET/PP) when oxygen/oxidation is a concern.
- Larger neck (40–70 mm) for easy filling and use.
Lotions & body care
Medium viscosity, daily use
- HDPE for surfactant-rich, cost-sensitive lines; PET for clear premium.
- Lotion pump 20–28 mm; 100–300 ml standard.
- Refill/family sizes up to 1000 ml.
Toners, mists & sprays
Spray or pour
- PET bottles with mist sprayer or flip-cap, 20–24 mm neck.
- 100–250 ml; fine mist for facial sprays.
- Clear PET shows a clean formula and supports branding.
Sunscreen & shampoo
Chemical-rich, opaque
- HDPE is the default — broad chemical resistance, opaque protects actives.
- 28 mm neck for pump/flip-cap; 200–1000 ml.
- Lowest material cost at volume.
Pharma & health
Food-grade, regulated
- PET, food-grade virgin resin; CRC cap where regulation requires.
- 100–500 ml; 28–38 mm neck.
- Document resin grade and compliance (FDA / EU 10/2011).
Capacity selection
Capacity signals usage and price tier. A simple rule of thumb by category:
| Category | Common capacity | Note |
|---|---|---|
| Serums / essences | 15–60 ml | Small = premium, controlled dose. |
| Creams / jars | 15–100 ml | Jar size drives perceived value. |
| Lotions | 100–300 ml | Everyday use. |
| Toners / mists | 100–250 ml | Larger for body mists. |
| Body care / shampoo | 200–1000 ml | Refill & family packs. |
| Pharma / health | 100–500 ml | CRC where required. |
Neck finish & closures
The neck diameter and thread standard decide which pump, dropper, sprayer or cap fits. Common cosmetic necks are 18 mm, 20 mm, 24 mm, 28 mm (and wider 40–70 mm for jars). Standardizing a neck across a product range lets you share closures and simplify procurement and inventory.
Always confirm the neck size and thread standard (e.g. SP400 / SP410) with your supplier before tooling — an incompatible closure is the most common late-stage packaging mistake.
Customization & decoration
Differentiate on shelf with color, printing and finishing:
- Color — transparent, translucent or solid custom colors (Pantone/HEX).
- Printing — silk-screen, label, hot-stamp foil.
- Finishing — frosting, spray coating, soft-touch.
- MOQ — low-MOQ customization from 5,000 units at ShiJin Package.
Frequently asked questions
What is the best bottle for a facial serum or oil?
For a clear water-like serum choose PET (30–60 ml dropper or pump). For a premium oil or a drop-resistant premium pack choose PETG. Use a dropper or treatment pump matched to the bottle neck (commonly 18–24 mm). Amber or frosted PET/glass also helps protect light-sensitive actives.
Which bottle suits a thick cream or mask?
Thick creams and masks are usually filled into wide-mouth jars (PET or PETG for clear premium look, PP for the cap) in 15–100 ml, or into airless pump bottles (PET or PP) that protect oxygen-sensitive formulas. Wide-mouth jars need a neck of 40–70 mm for easy scooping.
What capacity should I choose for a leave-on skincare product?
Serums/essences: 15–60 ml. Creams/jars: 15–100 ml. Lotions: 100–300 ml. Toners/mists: 100–250 ml. Body care: 200–1000 ml. Larger sizes suit refill or family packs; smaller sizes suit trial and travel.
Why does neck finish / closure size matter?
The neck (and its thread standard, e.g. 18 mm, 20 mm, 24 mm, 28 mm) decides which pump, dropper, sprayer or cap fits. Standardizing on a common neck across a range lets you share closures and simplifies procurement. Always confirm neck size with your supplier before tooling.
Can I customize color, printing and spray finishing?
Yes. Bottles can be produced in custom colors (transparent, translucent or solid), with silk-screen printing, labeling, hot-stamp, frosting or spray coating. Provide Pantone/HEX and artwork; suppliers like ShiJin Package offer low-MOQ customization from 5,000 units.
Related resources
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