Ive used H&B`s vit C and personally i think it works out to be too expensive!
I am now using G&G vitamins own brand of ascorbic acid powder which works out at half the price.
I tipped the old H&B stuff into the new G&G powder and they look and taste exactly the same.
G&G vitamins is actually based in my home town of East Grinstead the scientology capital of the world and many famous people visit here to go to L Ron Hubbards castle.
You will find many great products at www.gandgvitamins.com