BulkSupplements.com L-Leucine Powder - Leucine Supplements, Leucine Amino Acid - BCAA Supplements, Leucine Powder - Unflavored & Gluten Free, 5000mg per Serving, 500g (1.1 lbs)

L-Leucine arrived on time and in tact. No odor or smell upon opening the bag. The product does not have a flavor. I’ve been adding it and creatine (also from Bulk Supp) to my Hydration drink. It does not dissolve fully, but not an issue for me. I just shake well before taking each sip. I may try it in my iced coffee.I’ve only been drinking it for 2 days, but will report back with results. No gas, no stomach upset.Updated (1 Week):Still no side effects or gastrointestinal issues. Progressive load and endurance in gym is much improved. Increased muscle pump (glutes/hams/quads).Since this product Does not fully dissolve in cold, warm or hot liquids I would suggest adding to a smaller quantity of fluid, and drinking all at once. I currently had been mixing w/hydration or Xtend EAA and sipping throughout the day, but by the end of day, product is at the bottom of vessel.I added to my hot coffee, product did not dissolve, floated to top, but also added a ‘peanut like’ flavor to coffee. Going forward I am only going to mix with 4oz Hydration fluid and drink at once.I’ll still leave 5 stars because supplements just simply have nuances and we just have to figure out what route & dose is best for us.

Leucine seems to dissolve in hot tea if collagen is added. And the bitter taste of Leucine blends easily with tea. Havent tried it with cold tea yet. According to AI, Leucine prevents muscle loss while fasting 😁 it promotes strength, energy and speeds ketosis. Just started, I'll get back to you if I get remarkable results like joining the Olympics

Very hard to dissolve. They say to put it in some liquid and shake it up and that does help but it really is a hassle dealing with it. I have a couple pound package that’s gonna take me a year to use so if I find a way to dissolve it I’ll let you know

good stuff

This company is really great I buy a lot from them the only issue I have with them their bags do not reseal

I have now subscribed to ConsumerLab.com to get unbiased reviews. Bulk Supplements generally has well over 50% of its stated potency and the initially quality of its supplements is very high. I say "initial quality" as the "zip-lock" like bags it sells its products in very quickly deteriorate and often come apart at the seams. I've boughts literally hundreds of their products, all of which I have been INITIALLY satisfied with. I will not likely purchase this brand going forward because the packaging nearly ALWAYS FAILS over time. Its failure to close properly means that the products suffer from oxidative damage due to poor or NO CLOSURE. I suggest that they completely redo their packaging. It is wonderful if it were single use, but totally unacceptable for any multiple use "bulk" powders.3 FAILURE MODES:WON'T CLOSE, CLOGGED ZIP CHANNELThis often happens on the first time a package is opened. It is inevitable as the powder falls in the "crack" of the zip channel and prevents closure.WON'T OPEN, CLOGGED ZIP CHANNELAir moisture causes many of the powders to become very sticky. A tiny amount of the powder gets in the zip channel every time the package is opened and an amount is removed. After that the package is hard to open and then often the final failure mode below, occurs.WON'T CLOSE BOTH ZIP CHANNEL PARTS STUCK TO ONE EDGE OF PACKAGE OPENINGAfter this closure is only possible with a customer supplied clip or rubber band. Very convenient - for Bulk Supplements.ACKWARDFlexible plastic bags are ackward to hold and dispense the correct amount with a scoop or spoon. A screw-top jar, such as other companies provide is highly recommended.

Through some research I've discovered some important things about when and how to take Leucine.Do not's:1) Do not take before your workout. Leucine stimulates the production of glycogen from glucose, and simultaneously prevents glycogen's breakdown into glucose, so you won't be getting enough energy to your muscles during your workout.2) Do not take leucine without food or in a fasted state. if you want to prevent catabolism, or muscle breakdown, take HMB. Leucine should be reserved for times you want to promote muscle synthesis, or anabolism.3) Do not take leucine consistently throughout the day. Leucine can cause insulin resistance when taken in large amounts and too consistently.4) Do not take in the morning. This is not an optimum time to build muscle anyway, as your body's natural cortisol spike is then. Wait until afternoon/evening.Do's:1) Take leucine with meals. Leucine signals muscle synthesis, so making sure you have the protein, carbohydrates and nutrients to go along with that is key. Taking leucine with a meal ensures you'll get a useful spike in insulin, and the body can get straight to building muscle.2) Take leucine intermittently in spikes. Choose a large meal toward the end of the day to take your leucine so you're body will have a lot to build muscle with and can build it while cortisol is low in the evening and while sleeping. On days you workout, taking it with a meal after you workout and a meal in the evening can still make sense. Avoid taking it during every meal during the day to prevent insulin resistance.So, a proper dosing schedule would be a tablespoon with dinner, and on days you have an especially heavy workout, a tablespoon with a meal after working out and another teaspoon with an evening meal before bed.