How does violet glass protect and preserve organic compounds?

The dark violet glass is an extremely effective filter from the most damaging rays of light which occur in the range of 420 to 750 nanometers, also known as the photosensitive range as well as the hard UV range (according to the Fraunhofer Inst., Munich). This has a twofold effect. The first being obvious; degradation is cut down by not exposing the contents to this spectral range. Amber glass is grossly deficient in comparison, as are other colored glasses.

The second effect comes about by the nature of our glass allowing a specific part of the violet/ blue spectrum of light through as you can see when you look through one sidewall of a bottle at a bright light source. There is about 25% translucency in the 380-420 nm range, which, according to Dr. Jacob Jutz, stimulates biological substances. Bio-photon researcher Dr. Hugo Niggli, Eppendes, Switzerland, expressed himself similarly. Purely opaque glass would not allow this action to occur.

Miron's dark violet glass is also a barrier to energy radiation from the product within the bottle flowing outward. No other glass compares in this respect either.