# Glass Bottles Only — 18mm Neck, 5ml to 100ml, Add Your Own Cap **These are empty glass bottles with a standard 18 mm neck, sold without a cap, so you choose the bottle and the cap separately.** Pick 10 ml, 15 ml, 30 ml, 50 ml or 100 ml, each in amber, amber frosted, clear, clear frosted, blue, green or black glass. Then add any 18 mm glass dropper, euro dropper, spray pump, lotion pump or cap from our [bottle caps](/collections/cosmetic-bottle-closures) range. These small glass bottles sell from one piece; all colours of one size count together towards the next price step. ## Choose your cap Cap Fits Best for [Glass dropper](/products/18mm-closures-15ml-30ml-50ml-100ml-glass-dropper-set-glass-dropper-metal-ring-silicon-teat) (pipette, metal ring, silicone teat) 5 ml to 100 ml: pick the pipette that matches the bottle size Serums, face oils, hair oils [Euro dropper insert with screw cap](/products/18mm-euro-dropper-and-caps) All sizes Essential oils, one drop at a time, sealed for travel [Mist spray pump](/products/18mm-spray-pumps-and-lotion-pumps-5ml-to-100ml) All sizes Perfume, toners, face mists [Lotion pump](/products/18mm-closures-lotion-pumps) All sizes Lotions, gels, body oils [Screw cap only](/products/18mm-euro-dropper-and-caps) (plastic or metal) All sizes Storage, refills, sealed minis **The pipette must match the bottle.** A glass dropper made for a 30 ml bottle is too long for a 15 ml bottle and too short to reach the bottom of a 50 ml one, so choose the same size on both. **Glass colour.** Amber filters most UV light and protects essential oils, vitamin C and retinol. Black blocks almost all light. Blue and green filter part of the light and are chosen for the look. Clear and frosted glass show the product and suit stable formulas or products sold in a carton. **Why buy the bottle on its own.** Run one bottle across several products with different caps, restock bottles without paying for caps you already hold, switch a range from dropper to pump without changing bottles, or use caps you already have. Every 18 mm cap on the site fits every bottle here. ## Buy 1 piece. Or brand 1,000. We are an importer and wholesaler, not a manufacturer, so you get direct-import prices with **no minimum order on ready stock**: order one piece or thousands. When you're ready to brand, your printed, painted or frosted glass starts at **just 1,000 pieces**, and custom closure colours at 5,000. In-stock orders leave Chennai within 3 working days, packed for glass, with a GST invoice. Also see [bottle caps](/collections/cosmetic-bottle-closures), [glass dropper bottles](/collections/glass-dropper-bottles), [essential oil bottles](/collections/empty-essential-oil-bottles) and [all cosmetic glass bottles](/collections/cosmetic-glass-bottles-wholesale-india). ## Products in this collection - [5ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/5ml-glass-bottle-18mm-neck) - 0.0 INR - [10ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/10ml-glass-bottle-18mm-neck) - 5.1 INR - [15ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/15ml-glass-bottle-18mm-neck) - 6.3 INR - [30ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/30ml-glass-bottle-18mm-neck) - 8.4 INR - [50ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/50ml-glass-bottle-18mm-neck) - 9.5 INR - [100ml Glass Bottle with 18mm Neck – Bottle Only, 7 Colours](https://rentraspa.com/products/100ml-glass-bottle-18mm-neck) - 13.7 INR --- > Source: [RENTRASPA™](https://rentraspa.com/collections/glass-bottles-only-18mm) > Updated: 2026-10-11