Description
The L-histidine capsules from Umbrella Labs gives you L-histidine as pre-filled capsules. Each batch is tested by LC-MS to 99% purity or higher. It’s $18.97. It’s sold for laboratory research only.
It’s also available as L-histidine powder. See all amino acid capsules for more options in this format.
What is L-histidine?
L-histidine is an essential amino acid with an imidazole ring. It’s the precursor of histamine and carnosine.
It’s sold here as a pharmaceutical-grade research powder or in capsules.
L-histidine capsules specifications
- Compound: L-histidine ((S)-2-Amino-3-(4-imidazolyl)propionic acid)
- CAS number: 71-00-1
- Molecular formula: C6H9N3O2
- Molecular weight: 155.15
- Purity: 99% or higher, tested by LC-MS
- Amount: 120 x 500mg
- Form: Pre-filled capsules
- Storage: Keep it in a cool, dry place away from direct sunlight
- Use: laboratory research only, not for human or veterinary use
What studies say about L-histidine
Histidine’s imidazole ring binds metals and buffers pH, which is why it’s common in enzyme active sites.
It’s a standard reagent, so it’s useful as a control or a defined input in nutrition and metabolism studies.
The original papers are on PubMed if you’d like to read them in full.
Why choose L-histidine capsules
Each capsule holds a fixed, measured amount of L-histidine (500mg), so there’s nothing to weigh out. For studies that need the same amount every time, that’s the main advantage over loose powder.
If you need amounts that don’t match the capsule size, the powder is more flexible, because you can weigh exactly what each sample needs and make up your own solutions or capsules at whatever strength your protocol calls for. Capsules are best for repeat work where the amount doesn’t change. Keep the lid tight, since moisture is the main thing that degrades capsule contents.
Planning a study with L-histidine capsules
Work out how many capsules your study needs before you order. Multiply the number of subjects by the number of administrations per subject, then add a few spare for losses. With 120 capsules in a bottle, that tells you straight away how many bottles to buy.
Keep all the capsules for one study from the same batch where you can. It removes batch-to-batch variation from your results.
How we test L-histidine
Every batch of L-histidine is checked with liquid chromatography-mass spectrometry (LC-MS) before it goes on sale. LC-MS separates a sample into its parts and identifies each one by mass, so it confirms what the compound is and how much of the sample it makes up. The current batch tested at 99% or higher.
Small differences between batches are normal, so write the batch number from the label into your records. If something looks wrong when your order arrives, like discoloured powder or a cloudy solution, set it aside and don’t use it.
Storage and handling
Keep it in a cool, dry place away from direct sunlight. Keep the desiccant in the bottle and the lid closed tight. Label anything you decant with the compound, amount and date, and keep it out of reach of children and pets.
Common questions about the L-histidine capsules
How many capsules are in a bottle?
See the amount listed above (120 x 500mg). Every one is filled to the same amount.
Can I open the capsules?
Yes, if your protocol calls for it. Do it on clean weighing paper so you don’t lose any powder.
Is the L-histidine capsules in stock?
Yes. Every option on this page is in stock and ready to ship.
Other amino acids you might need
Similar products in this format include L-isoleucine capsules, L-leucine capsules, L-lysine capsules and L-methionine capsules. Our main Amino Acids and Probiotics page lists everything in the category.
Order the L-histidine capsules from Umbrella Labs
It’s simple. Add it to your cart and check out. The L-histidine capsules is in stock and ready to ship. While you’re here, our lab supplies cover the pipettes, scales and solutions most studies need.
Sold for laboratory research use only. It isn’t for human or veterinary use, and it isn’t a food, drug or cosmetic.
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