K (continued)
- KX2-391
- Kynacyte
- Kytril
L
- L-3,5,5
- L-377,202
- L-778,123
- L-alanosine
- L-arginine
- L-arginine / Korean ginseng / Gingko biloba / damiana-based supplement
- L-Asnase
- L-asparaginase
- L-Carnipure L-Carnitine L-Tartrate
- L-carnitine
- L-carnitine L-tartrate
- L-citrulline
- L-glutamic acid
- L-gossypol
- L-leucovorin
- L-leucyl-L-leucine methyl ester
- L-MTP-PE