Shibui
Imperial Masterpiece
I also do hundreds of trees every year and cannot see any difference with or without kelp. The companies selling this have done a great job in marketing but I don't use it any more.
I have not seen any evidence of any harm, just no visible benefit so I am quite happy if others find it comforting to use.
I have not seen any evidence of any harm, just no visible benefit so I am quite happy if others find it comforting to use.