High quality gemmotherapy remedies are robust and long-lasting, but they should be kept in the dark in order to preserve their optimum therapeutic properties.  They could degrade if stored in ordinary glass.

SPREMA gemmotherapy remedies come in special glass bottles — a dense, dark violet glass which prevents virtually all light from entering — even the strongest sunlight.

If you hold a SPREMA bottle up to the sun, you should be able to see a slight purplish tinge, and nothing else.

Dark violet glass bottles are an investment, but we insist on using them.  They come with a high quality natural teat-ended rubber dropper and a secure tamper-proof collar seal.