Brown plastic bottle, 24/410, 300 ml

Brown plastic bottle, 24/410, 300 ml

Brown PET bottle designed for liquid and semi-liquid preparations that require protection from light. Suitable as both a retail and home-use container for tonics, hydrolats, body lotions, shower gels, shampoos, conditioners, massage and body oils, and liquid soaps. The 300 ml volume corresponds to the standard size of bathroom products for everyday use.

The brown colouring reduces light transmission, which is beneficial for vegetable oils, preparations with essential oils, or those containing more sensitive active ingredients. PET is lightweight and shatterproof, making it practical for shower use, travel, and shipping finished products to customers. The bottle is suitable for both cosmetic and technical applications.

Key benefits

• Light protection – the brown material reduces the amount of light reaching the contents, supporting the stability of colour, fragrance, and sensitive ingredients.
• Lightweight and shatterproof – unlike glass, it weighs little and will not break when dropped, which is important in the bathroom and during transport.
• Standard neck finish – a range of closures for the same thread type is available in the range, to suit the nature of the contents.
• Practical volume – 300 ml is a suitable size for lotions, gels, shampoos, and oils for several weeks of use.
• Recyclable material – PET is commonly recycled and belongs in sorted plastic waste collection once empty.

Filling and bottle volume

The bottle has a stated nominal volume and total brim-fill volume, both listed in the parameters. The nominal volume is the quantity for which the container is designed under normal filling conditions. The total volume is the physical capacity up to the neck. The difference between them provides a reserve for the closure, pump, or sprayer and for expansion of the contents when temperature changes. Fill to the nominal volume, not to the brim. An overfilled bottle is harder to close once the cap is fitted, and the contents may leak when squeezed.

Suitable for products such as

• Tonics and hydrolats – combined with a sprayer as a facial mist or hair tonic.
• Body lotions and shower gels – with a pump or dispensing cap for bathroom use.
• Shampoos and conditioners – a lightweight container that handles the damp environment of the shower.
• Massage and body oils – the brown material protects oils from light, which accelerates their degradation.
• Liquid soaps and cleansing preparations – with a pump as a dispenser at the sink.

Choosing a closure

Closures with the same neck finish as listed in the parameters, as well as ready-made bottle and closure combinations, are available in the Handymade range. For custom combinations, we recommend verifying leak-tightness and dispensing with the specific formulation. A pump has a different dip-tube length for a thick gel than for a thin oil; a sprayer is suitable only for low-viscosity liquids.

Useful notes for working with the bottle

Before the first fill, the container should be washed and sanitised with isopropyl alcohol or ethanol and left to dry completely. Residual water in the container shortens the shelf life of water-based preparations and puts pressure on the preservative system.

PET is compatible with water-based and oil-based contents and common cosmetic formulations. For preparations with a high proportion of essential oils, solvents, or concentrated alcohol, it is advisable to test one bottle first. Check whether the material becomes cloudy, softens, or loses its gloss. Hot mixtures should not be filled into PET. Allow the contents to cool to room temperature before filling, otherwise the bottle may deform.

Reuse is possible if the bottle is thoroughly cleaned and the previous contents have not left a residual odour. Traces of fragrant substances are harder to remove from plastic than from glass. When selling finished products, the bottle must be labelled; usable label dimensions are listed in the parameters.

Frequently asked questions