Berberine vs berberine HCl: what's the difference

Berberine HCl is berberine bound to hydrochloric acid to form a stable salt — it's the form used in the large majority of berberine research, including the studies behind the dose figures we cite elsewhere on this site. When a label just says "berberine" with no form specified, it's usually HCl by default; Electric Tiger Berberine states it directly.

What "HCl" means on a berberine label

Berberine on its own is poorly soluble. Binding it to hydrochloric acid produces berberine hydrochloride (HCl), a more stable, more soluble salt form — the one used in most manufacturing and most of the clinical literature on the ingredient, including the trials behind the dose ranges we cite in how much berberine should you take a day. Electric Tiger Berberine is a bark and root extract standardized to berberine HCl.

Berberine phytosome, another form worth knowing

Some brands sell a phytosome form — berberine complexed with a phospholipid, a formulation technique developed by an ingredient manufacturer to improve absorption. A 2021 pharmacokinetic study, run and authored by that manufacturer's own research staff, found the phytosome form produced roughly ten times higher blood levels, by molar measure, than unformulated berberine in healthy volunteers. It's a real finding, but it comes from the company that makes the ingredient, was tested against unformulated berberine rather than HCl specifically, and we haven't independently verified it. We don't carry a phytosome product.

What the percentage after "HCl" means

Some labels list a purity percentage next to the HCl form — "97% HCl" or "99% HCl," for example. That percentage describes how pure the berberine hydrochloride salt itself is, which is a different number from an extract's standardization percentage (the share of a plant extract that is berberine). Electric Tiger Berberine's panel uses both: a 790 mg extract standardized to 8% berberine, plus 10 mg of a 97%-standardized fraction. Read both numbers on any label — extract weight, standardization percentage, and salt purity aren't interchangeable, and a high purity percentage on a small ingredient line doesn't tell you the total berberine amount on its own.

Does the form change our dose gap?

No. Electric Tiger Berberine's roughly 73 mg of berberine per serving is measured the same way the clinical trials report their doses. The gap between our serving and the 900 mg-1.5 g a day used in most trials exists regardless of which salt or formulation technique a product uses — see how much berberine should you take a day.

Questions people ask

What is berberine HCl?

Berberine hydrochloride — berberine bound to hydrochloric acid to form the salt form used in most berberine products and most of the research on the ingredient.

Is berberine HCl the same as berberine?

In practice, yes. "Berberine" on most labels means berberine HCl by default, since it's the standard commercial and research form. A label using a different form — phytosome, dihydroberberine — will usually say so.

What's the difference between berberine HCl and berberine phytosome?

HCl is the salt form used in most research; phytosome is a phospholipid complex marketed for absorption, with human data that currently comes only from the company that manufactures it. See above for what that one study found.

Related reading: berberine vs dihydroberberine and what is berberine.