The 100 ml format is the most practically useful size for small business and home cosmetic making: large enough to hold meaningful contents (massage oils, body lotion, cold-pressed oils), small enough that contents do not sit in the bottle for too long. This 70-piece pack contains 100 ml black glass bottles with aluminium caps — combining full light blocking with an airtight seal for small business use.
What is in the pack of 70
70 black glass bottles of 100 ml + 70 aluminium caps. Height: ~130 mm, diameter: ~52 mm, empty weight: ~130 g per piece. Pack gross weight is approximately 10.01 kg. The aluminium cap provides a leak-proof, chemically neutral seal, sized for a GL18 neck. Country of origin: China.
Black glass and full light blocking in 100 ml
In the 100 ml format, light protection matters even more, because the contents remain in the bottle for a longer period (1-3 months of use). Opaque black glass blocks essentially the entire light spectrum, including the UV range and almost all wavelengths of visible light. This is particularly justified for massage oil bases, vitamin C facial serums, and cold-pressed facial oils.
Aluminium cap details
Aluminium is chemically inert and corrosion-resistant: it does not react with essential oils, imparts no off-flavours or odours, and contains no BPA, phthalates, or other plasticisers. The internal liner provides an airtight seal that prevents the evaporation of volatile components. The aluminium cap sized for the 100 ml bottle has a slightly larger outer diameter than the 50 ml version, but the same GL18 thread. Aluminium is easily recyclable.
Areas of use
- Long-term storage of massage oil bases and body oils
- Bottling cold-pressed botanical oils (argan, jojoba, castor)
- Storing DIY body lotion formulations
- Vitamin C serums in 100 ml industrial format
- Private label natural cosmetics
Cleaning and reuse
Before filling, wash in warm water with washing-up liquid, rinse thoroughly, and let dry completely. Residual scent from previous contents can be removed most effectively using 70% isopropyl alcohol. Avoid putting the aluminium cap in the dishwasher, as the liner can be damaged. Glass and aluminium can be recycled separately.