It is good to have spirulina forever.
There is an anti-counterfeiting inquiry on the package of each bag, but if you buy it in a physical store, it should be genuine.
This brand of spirulina is well recognized in Lijiang and has a good effect.
You can try. No side effects.
I am from Lijiang, and now I am studying the spirulina market.
There is also a small shop on Taobao that sells spirulina from Chenghai Lake in Lijiang.
If you have any questions, you can go to Taobao to find me in Lijiang.