What? Isn’t it enough to turn on UVB?


It's not that simple. However, if you only want to stop at the primary stage of lighting your reptiles, then there is no need to delve into this issue. But if you want to know what German experts are studying, then vitamin D3 and the synthesis principle are the introductory knowledge you must understand.


To summarize first, we need to remember one sentence: different wavelength bands of ultraviolet rays have different effects on the synthesis of vitamin D.


As long as you remember this sentence, you will master two pieces of information at the same time:


1. It is not only UVB that affects the synthesis of vitamin D.


2. Even within the UVB band, the effects of different bands are different.


Only when you remember this major premise can you continue to delve deeper. Now, we will analyze the synthesis principle of vitamin D3 in detail. Of course, this topic involves biochemistry, organic chemistry, and medical knowledge. It is impossible for me to delve into every principle, but I can integrate the mature conclusions of predecessors to clarify this complex chemical process for you.