By Yahoo-gle the closest store is in Shanghai, butT.. supplements are all 'Made in China', so you might get some by contacting factory direct:

1. Protein and Workout Supplements in Shanghai - Shanghai Guruwww.shanghaiguru.com/protein-in-shanghai/
   

   Apr 15, 2014 ... So, now that you're working out, what about the workout supplement, ... There are several physical or online shops that cater to expats that sell ... 1) Search in Chinese for what you want (or if you have to, you can try English). 

2. I found a supplement store in China!!!! What the heck took so...www.thebeijinger.com/forum/2009/02/05/i-found-supple...
   

   I told them at World Health Store and they said over half the stuff out ... to buying bodybuilding supplements and nutritional products in China. 

3. Nutritional Supplement - Made-in-China.comwww.made-in-china.com/products-search/hot-china-products/Nut...
   

   4497 products ... China Nutritional Supplement - Select high quality Nutritional ... Group from certified Chinese Food Supplement factory, Dietary Supplement ... Hefei Reachever Import and Export Limited . ..... Free APP: App Store Google Play. 

4. China Food Supplement, Food Supplement Manufacturers ...www.made-in-china.com/products-search/hot-china-products/Foo...
   

   14929 products ... China Food Supplement - Select high quality Food Supplement products varied ... certified Chinese Food Additive factory, Health Food manufacturers, suppliers ... Efficacy: Weight Loss & Slimming; Store Method: Place in Cool and Dry Place .... Supple High Quality Nutrition Supplement N-Acetyl L-Glutamine.