Home Ingredients BioBerb® (Bioavailable Berberine — Saanroo)
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BioBerb® (Bioavailable Berberine — Saanroo)

Berberis aristata (root)
Evidence Level
Limited
2 Clinical Trials
3 Documented Benefits
2/5 Evidence Score

BioBerb is a branded berberine ingredient supplied by Saanroo and made with Pharmako Biotechnologies' LipiSperse dispersion technology. Supplier materials describe it as a cold-water dispersible powder from Berberis aristata root standardized to 63% berberine. Ordinary berberine is poorly absorbed, and BioBerb is marketed as better absorbed so that lower doses can be used. Press materials cite a single-dose blood-level study of BioBerb, but it is not indexed in PubMed, and no published trial has tested BioBerb for blood sugar, cholesterol or tolerability. The research behind berberine used ordinary berberine, usually 500 mg three times a day, mostly in people with type 2 diabetes or high cholesterol. In those studies berberine lowered HbA1c, fasting glucose, LDL cholesterol and triglycerides. Berberine slows several drug-processing liver enzymes, so check with a pharmacist before using it with prescription medicines.

Studied Dose No dose of BioBerb has been tested in a published trial. Supplier materials list up to 300 mg of BioBerb (about 190 mg berberine). Trials of ordinary berberine mostly used 500 mg three times a day (1,500 mg a day).
Active Compound Berberine, an isoquinoline alkaloid, from Berberis aristata root; supplier specification 63% berberine in a LipiSperse cold-water dispersible powder.

Benefits

Healthy blood sugar support (ordinary berberine research)

A pooled analysis of 46 randomized trials, in people with type 2 diabetes, often alongside standard treatment, found ordinary berberine lowered HbA1c by about 0.7 points and also lowered fasting glucose and insulin resistance. These trials used far more berberine than a BioBerb serving provides, and none tested BioBerb.

Supported by Trial 1

Cholesterol and triglyceride support (ordinary berberine research)

A pooled analysis of 16 randomized trials with 2,147 people with high blood lipids found ordinary berberine lowered total cholesterol, LDL cholesterol and triglycerides. The authors rated most trials as low quality with a high risk of bias. None of these trials used BioBerb.

Supported by Trial 1, Trial 2

Dispersible berberine for lower doses

Ordinary berberine dissolves and absorbs poorly. BioBerb uses LipiSperse technology to disperse berberine in cold water, and its supplier says this allows lower doses. Press materials report blood levels after a single 188 mg dose, but that study is not indexed in PubMed and did not measure any health outcome.

Supported by Trial 1, Trial 2

Mechanism of action

1

Poor absorption of ordinary berberine

Berberine dissolves poorly and crosses the gut wall poorly, so little of an oral dose reaches the blood. In rats, a laboratory formulation that improved dissolution raised berberine absorption about fivefold. This is the problem that enhanced forms such as BioBerb aim to address.

2

LipiSperse dispersion technology

LipiSperse is Pharmako Biotechnologies' patented dispersion technology. The supplier says it lets berberine disperse in cold water and improves absorption. No published study has compared BioBerb with ordinary berberine.

3

Effects on drug-processing enzymes

In healthy men, 300 mg of berberine three times a day for 2 weeks reduced the activity of the liver enzymes CYP2D6, CYP2C9 and CYP3A4. This is why berberine can raise blood levels of some medicines.

Clinical trials

1
Berberine in adults with type 2 diabetes (ordinary berberine, not BioBerb)
PubMed

Two 3-month pilot studies: a randomized comparison of berberine with metformin, both 500 mg three times a day, and an add-on study (Yin et al. 2008, Metabolism)

36 adults with newly diagnosed type 2 diabetes, and 48 adults with poorly controlled type 2 diabetes.

In the first study, HbA1c fell from 9.5 to 7.5 percent on berberine, with glucose effects similar to the comparison drug. In the second, HbA1c fell from 8.1 to 7.3 percent and insulin resistance fell by about 45 percent. Transient stomach side effects affected about a third of patients. This trial used ordinary berberine, not BioBerb.

2
Berberine and drug-processing enzymes
PubMed

Randomized crossover study of 300 mg of berberine three times a day for 2 weeks, tested with probe drugs (Guo et al. 2012, Eur J Clin Pharmacol)

Healthy men.

Berberine reduced the activity of CYP2D6, CYP2C9 and CYP3A4; for example, blood levels of midazolam rose by about 40 percent. Other enzymes tested did not change.

Side effects and drug interactions

Common Potential side effects

No published tolerability data exist for BioBerb itself.
With ordinary berberine at 500 mg three times a day, about a third of patients in one trial had transient stomach side effects.
Pregnancy, breastfeeding and infants: do not use. The NIH notes that berberine can be harmful to newborns.
Long-term safety beyond the length of the trials, mostly 3 months, is not well established.

Important Drug interactions

Berberine slowed the liver enzymes CYP2D6, CYP2C9 and CYP3A4 in healthy men, raising blood levels of the test drug midazolam by about 40 percent. It can raise levels of many medicines that use these enzymes. Ask a pharmacist before combining.
Cyclosporine: in healthy volunteers, berberine raised blood levels of cyclosporine by about 19 percent at one dose level.
Diabetes medicines (metformin, sulfonylureas, insulin, GLP-1 medicines): berberine also lowers blood glucose, so monitor your blood sugar and talk to your prescriber.
Blood thinners and other medicines with a narrow safety range: talk to your prescriber before combining.

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Frequently asked questions about BioBerb® (Bioavailable Berberine — Saanroo)

What is BioBerb?

BioBerb is a branded berberine ingredient from Berberis aristata root, supplied by Saanroo and made with Pharmako's LipiSperse dispersion technology to improve how well berberine disperses and absorbs.

Has BioBerb been tested in clinical trials?

No published trial has tested BioBerb for blood sugar, cholesterol or side effects. Press materials mention a single-dose blood-level study that is not indexed in PubMed. The health research on berberine used ordinary berberine at higher doses, mostly in people with type 2 diabetes or high cholesterol.

How much berberine was used in studies?

Most trials of ordinary berberine used 500 mg three times a day. Supplier materials list BioBerb doses up to 300 mg. Follow the product label.

Is BioBerb safe?

Ordinary berberine commonly causes stomach upset at trial doses, and it changes how the liver processes many medicines. Do not use it during pregnancy or breastfeeding, and ask a pharmacist before combining it with prescription medicines, especially diabetes medicines.

What is BioBerb used for?

BioBerb is researched primarily for Metabolic Health and Cardiovascular. A pooled analysis of 46 randomized trials, in people with type 2 diabetes, often alongside standard treatment, found ordinary berberine lowered HbA1c by about 0.7 points and also lowered fasting glucose and insulin resistance.

Does BioBerb interact with any medications?

Possible interactions include: Berberine slowed the liver enzymes CYP2D6, CYP2C9 and CYP3A4 in healthy men, raising blood levels of the test drug midazolam by about 40 percent. It can raise levels of many medicines that use these enzymes. Ask a pharmacist before combining. If you take prescription medication, check with a pharmacist or doctor before using it.

How strong is the scientific evidence for BioBerb?

NutraSmarts rates the evidence for BioBerb as Limited (2 out of 5). It is backed by 2 study summaries and 9 cited references summarized on this page. A higher rating reflects more, larger, and better-designed human studies.

References(9 citations)

Evidence ratings on NutraSmarts are based on the totality of human clinical research, with emphasis on randomized controlled trials, meta-analyses, and systematic reviews. The references below directly support claims made throughout this page.

  1. Yin J, Xing H, Ye J. Efficacy of berberine in patients with type 2 diabetes mellitus. Metabolism. 2008;57(5):712-7. doi: 10.1016/j.metabol.2008.01.013.PubMedUsed to support: Two 3-month pilot studies of ordinary berberine (500 mg three times a day): in 36 adults with newly diagnosed type 2 diabetes, berberine lowered HbA1c and glucose similarly to the comparison drug; in 48 adults with poorly controlled type 2 diabetes, it lowered HbA1c, fasting insulin and insulin resistance. About a third had transient stomach side effects. Not BioBerb.
  2. Guo J, Chen H, Zhang X, Lou W, Zhang P, Qiu Y, Zhang C, Wang Y, Liu WJ. The Effect of Berberine on Metabolic Profiles in Type 2 Diabetic Patients: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Oxid Med Cell Longev. 2021;2021:2074610. doi: 10.1155/2021/2074610.PubMedUsed to support: Systematic review and meta-analysis of 46 randomized trials of ordinary berberine, alone or with standard treatment, in type 2 diabetes: lower HbA1c, fasting and post-meal glucose, insulin resistance, triglycerides and LDL. Not BioBerb.
  3. Ju J, Li J, Lin Q, Xu H. Efficacy and safety of berberine for dyslipidaemias: A systematic review and meta-analysis of randomized clinical trials. Phytomedicine. 2018;50:25-34. doi: 10.1016/j.phymed.2018.09.212.PubMedUsed to support: Systematic review and meta-analysis of 16 randomized trials (2,147 participants) of ordinary berberine in people with dyslipidaemia: lower total cholesterol, LDL and triglycerides, with most trials at high risk of bias. Not BioBerb.
  4. Zhaojie M, Ming Z, Shengnan W, Xiaojia B, Hatch GM, Jingkai G, Li C. Amorphous solid dispersion of berberine with absorption enhancer demonstrates a remarkable hypoglycemic effect via improving its bioavailability. Int J Pharm. 2014;467(1-2):50-9. doi: 10.1016/j.ijpharm.2014.03.017.PubMedUsed to support: Laboratory and rat study: berberine is poorly absorbed because it dissolves and permeates poorly; an amorphous solid dispersion with an absorption enhancer raised bioavailability about fivefold in rats. This is a different formulation from BioBerb.
  5. Guo Y, Chen Y, Tan ZR, Klaassen CD, Zhou HH. Repeated administration of berberine inhibits cytochromes P450 in humans. Eur J Clin Pharmacol. 2012;68(2):213-7. doi: 10.1007/s00228-011-1108-2.PubMedUsed to support: Randomized crossover study in healthy men: 2 weeks of berberine (300 mg three times a day) decreased CYP2D6, CYP2C9 and CYP3A4 activity, raising midazolam exposure by about 40 percent.
  6. Xin HW, Wu XC, Li Q, Yu AR, Zhong MY, Liu YY. The effects of berberine on the pharmacokinetics of cyclosporin A in healthy volunteers. Methods Find Exp Clin Pharmacol. 2006;28(1):25-9. doi: 10.1358/mf.2006.28.1.962774.PubMedUsed to support: Study in healthy male volunteers: 10 days of berberine (0.3 g twice daily) did not change cyclosporine A levels at a 6 mg/kg cyclosporine dose, while in a second group a single 0.3 g berberine dose raised cyclosporine A exposure by about 19 percent at a 3 mg/kg dose.
  7. NXT Ingredients. BioBerb by Pharmako Supplier ingredient listing. ;Online ingredient listing, accessed October 2026..SourceUsed to support: Not PubMed-indexed. Supplier listing describing BioBerb as Berberis aristata root standardized to 63% berberine, made with Pharmako's patented LipiSperse dispersion technology, supplied by Saanroo as a cold-water dispersible powder, with a maximum listed dose of 300 mg.
  8. Nutraceuticals World. Gencor to Debut Bioberb, Feature New Clinical Data on OEA and PEA Ingredients Nutraceuticals World. 2025;Trade press, October 17, 2025..SourceUsed to support: Not PubMed-indexed. Trade press report that Gencor and its delivery partner Pharmako Biotechnologies would launch BioBerb, citing a single 188 mg dose study reporting plasma berberine levels, with no publication details given.
  9. National Center for Complementary and Integrative Health. Goldenseal NCCIH, National Institutes of Health. ;Online fact sheet, accessed October 2026..SourceUsed to support: Not PubMed-indexed. NIH fact sheet stating that people who are pregnant or breastfeeding should not use goldenseal, that it should not be given to infants, and that its berberine constituent can be harmful to newborns.