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If it is only photosensitive ingredients, dark opaque glass bottles are generally used as packaging materials, especially dark brown glass bottles. Some photosensitive components are oxidized by ultraviolet radiation, which is not only simple to lose activity and no effect, but also may produce sensitization and toxicity. These photosensitive active ingredients must be protected from light in order to avoid ultraviolet photolysis and oxidation. For example, retinoids and their derivatives and furan coumarins have photosensitivity and phototoxicity, and ascorbic acid and ferulic acid are easy to photolysis and oxidation.

Such opaque glass bottles are often used with droppers to maintain convenience and hygiene. Some cosmetic brands that focus on functional ingredients especially like this kind of design. After all, sufficient and effective is their brand signboard, and appropriate outer packaging design is the basis for raw materials to play a role.

Although dark glass bottles mainly exist to avoid light, it does not rule out the use of dark glass bottles purely for traditional or appearance reasons. Even if there are no photosensitive components in the composition list of some products, they still use opaque dark glass bottles, which may be due to the traditional use of this dark dropper glass bottle in drugs.

In order to meet the needs of the high-end market, extend the industrial chain, optimize and expand the product system, we have not stopped the expansion of high-end production capacity in recent years. The project is committed to the transformation of product structure, process, quality and technology, so as to enrich the product system and increase the competitiveness of high value-added products“ We take the "five optimizations" as the main direction, accelerate the pace of transfer through the construction of new projects and new factories, and gradually extend and expand to the direction of intelligence, high-end, clustering and greening through technological transformation and product structure adjustment. "

We are gradually moving towards a high-quality and efficient industry.