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Part of our Cerebrozen overview. Last checked October 19, 2026.
Cerebrozen ingredients, according to the vendor's own Supplement Facts label, are chromium (0.7 mcg) plus a 200 mg proprietary blend of 22 items that read like an energy and weight-loss formula[1]. The sales page instead advertises a hearing blend of GABA, vinpocetine, lion's mane, alpha GPC, ginkgo, CoQ10, lemon and magnesium citrate[2]. Only GABA is in the blend, and lemon extract appears only as a flavoring.
Cerebrozen ingredients at a glance
Every item below comes from the label image read October 19, 2026. Only chromium has a stated amount; the other 22 share 200 mg. All 23 are graded Weak for hearing, because none has a hearing or tinnitus trial in people. The grade column shows the evidence for the use each item was actually studied for.
| Ingredient | Role claimed on sales page | Amount disclosed? | Grade (studied use) |
|---|---|---|---|
| Chromium picolinate | None | Yes, 0.7 mcg | Weak, dose trivial |
| Maca root | None | No | Weak |
| Grape seed | None | No | Limited (blood pressure) |
| Guarana seed | None | No | Limited (alertness) |
| African mango seed | None | No | Weak |
| Eleuthero root | None | No | Weak |
| Astragalus root | None | No | Weak |
| Green tea leaf | None | No | Weak |
| Gymnema leaf | None | No | Limited (blood sugar) |
| Coleus forskohlii root | None | No | Weak |
| Capsicum fruit | None | No | Weak |
| Grapefruit fruit | None | No | Avoid on CYP3A4 drugs |
| Panax ginseng aerial | None | No | Weak |
| Raspberry ketones | None | No | Weak |
| L-glutamine | None | No | Weak |
| L-tyrosine | None | No | Limited (stress cognition) |
| L-arginine | None | No | Limited (blood pressure) |
| Beta-alanine | None | No | Moderate (exercise) |
| Monoammonium glycyrrhizinate | None | No | Avoid with high blood pressure |
| GABA | Healthy hearing | No | Weak |
| L-ornithine HCl | None | No | Weak |
| L-tryptophan | None | No | Limited (sleep) |
| L-carnitine | None | No | Limited (weight) |
What is in each ingredient, and what does research say?
Each item has research for something other than hearing, usually at doses far above the roughly 9 mg average share here. Notes are in label order.
Chromium (0.7 mcg)
A mineral. Trials used 200 to 1,000 mcg, and Cochrane found no reliable evidence for weight loss[3]. The label amount is about 2 to 3% of the adult Adequate Intake. Weak.
Maca root
A Peruvian root studied for libido at 1.5 to 3 g a day, with limited evidence[4]. Weak.
Grape seed extract
Sixteen trials found a modest drop in blood pressure at 100 to 2,000 mg a day[5]. Limited.
Guarana seed
A caffeine source. Small, short-lived alertness gains at 37.5 to 300 mg per dose, mostly from its caffeine[6]. Limited.
African mango seed
Weight-loss trials used 150 mg twice daily; a systematic look called the effect positive but limited by poor trial quality[7]. Weak.
Eleuthero root
One crossover trial in 9 trained men used 800 mg a day for endurance[8]. Weak.
Astragalus root
Most human data come from Chinese injections or herbal mixes at gram doses[9]. Weak.
Green tea leaf
Cochrane found a small weight loss that is not clinically important[10]. Also a caffeine source. Weak.
Gymnema leaf
Lowered fasting glucose and HbA1c in small type 2 diabetes trials at 200 to 1,000 mg a day[11]. Limited.
Coleus forskohlii root
One 12-week trial in 30 overweight men used 250 mg twice daily: fat mass fell, weight did not[12]. Weak.
Capsicum fruit
Two mg or more of capsaicinoids per meal slightly cut energy intake[13]. Weak.
Grapefruit fruit
No supplement-dose benefit is established. It is known for raising blood levels of some medicines[14].
Panax ginseng aerial parts
Root trials used 2.7 g a day; Cochrane rated the effect on erectile function trivial[15]. Aerial parts are barely studied. Weak.
Raspberry ketones
No human trial of the compound alone; the data are mostly from rodents[16]. Weak.
L-glutamine
No effect on exercise performance or body composition at gram doses[17]. Weak.
L-tyrosine
May help working memory under acute stress at 100 to 300 mg per kg of body weight[18]. Limited.
L-arginine
A small blood pressure drop at 4 to 24 g a day[19]. Limited.
Beta-alanine
Improves 0.5 to 10 minute efforts at 3.2 to 6.4 g a day for 4 weeks or more[20]. Moderate for exercise.
Monoammonium glycyrrhizinate
A licorice sweetener. Regular intake raises blood pressure and lowers potassium[21].
GABA
Stress and sleep trials at 20 to 300 mg gave limited, low-quality evidence[22]. Weak.
L-ornithine
Small trials at 400 mg a day for 8 weeks improved fatigue and sleep scores[23]. Weak.
L-tryptophan
One gram or more may shorten time awake at night[24]. Limited.
L-carnitine
Thirty-seven trials at 1 to 3 g a day found modest extra weight loss[25]. Limited.
Advertised but not on the label
Vinpocetine, lion's mane powder, alpha GPC, ginkgo biloba, coenzyme Q-10 and magnesium citrate appear on the sales page[2] but not on the Supplement Facts panel[1]. We do not grade them, because the label does not say you get them. Ask the vendor in writing before buying if they matter to you.
How transparent is the Cerebrozen formula?
Not very. The vendor publishes its label, which is a plus, but 22 of the 23 items sit inside a 200 mg proprietary blend with no individual amounts[1].
The arithmetic: 200 mg divided by 22 is about 9 mg per item at one 1 ml serving, or about 18 mg at two droppers. Even if the whole 200 mg were a single item, it would sit below the studied dose of every amino acid on the list.
Some copycat pages online list these ingredients with badges the vendor label does not carry. Trust the label printed on the bottle you receive, and compare it with the vendor's label image as checked October 19, 2026.
Ingredient safety and interactions
The items that matter most for safety are the caffeine sources (guarana and green tea), licorice glycyrrhizin, grapefruit and L-tryptophan. Glycyrrhizin can raise blood pressure and lower potassium[21]. Grapefruit can raise levels of some statins and blood pressure medicines[14]. L-tryptophan adds to the effect of antidepressants and other serotonin drugs.
Because doses are hidden, these are flags about what is present, not proof of harm at this dose. The other ingredients include xylitol, which is toxic to dogs. Full detail is on our Cerebrozen side effects page.
Do these ingredients prove Cerebrozen works?
No. None of the 23 label items has a human trial for hearing or tinnitus, and the doses are far below those studied for any purpose. The AAO-HNS tinnitus guideline recommends against dietary supplements for persistent tinnitus[26], and NIDCD says none advertised for it has been proven effective[27].
The full evidence picture is on what Cerebrozen is used for and whether it works, and the dropper directions are on how to take Cerebrozen.
Back to the Cerebrozen overview.
Frequently asked questions
Is vinpocetine in Cerebrozen?
Not according to the label. The sales page says vinpocetine supports blood flow to the ears, but the vendor's Supplement Facts image, read October 19, 2026, does not list it. Lion's mane, alpha GPC, ginkgo, CoQ10 and magnesium citrate are also missing.
How much of each Cerebrozen ingredient is in a serving?
Only chromium has a stated amount, 0.7 mcg. The other 22 items share a 200 mg proprietary blend with no individual amounts, which averages about 9 mg each per 1 ml serving and about 18 mg at two droppers.
Does Cerebrozen have stimulants?
The sales page says No Stimulants, but the label lists guarana seed extract and green tea leaf extract, which both contain caffeine. The caffeine amount per serving is not disclosed because both sit inside the proprietary blend.
What are the other ingredients in Cerebrozen?
The label lists glycerin, water, organic lemon extract, stevia extract (Reb A), xylitol, sodium benzoate, potassium sorbate, citric acid and natural flavors. Xylitol is toxic to dogs, so store the bottle out of a pet's reach.
Is Cerebrozen a keto product?
The front panel of the vendor label reads Ketone Liquid Drops, and the blend includes raspberry ketones, African mango and coleus forskohlii. The sales page markets it for hearing instead. Trust the label on the bottle you receive.
Sources
- Cerebrozen Supplement Facts label image. cerebrozen24.com, read October 19, 2026.
- Cerebrozen order page and FAQ. cerebrozen24.com, read October 19, 2026.
- Chromium picolinate for overweight or obese adults (2013). Cochrane Database of Systematic Reviews, read October 19, 2026.
- Maca for sexual function: systematic review of 4 RCTs. PubMed, read October 19, 2026.
- Grape seed extract and blood pressure: meta-analysis of 16 RCTs. PubMed, read October 19, 2026.
- Guarana and cognition: systematic review and meta-analysis (2023). PubMed, read October 19, 2026.
- Irvingia gabonensis for weight loss: systematic review of RCTs. PubMed, read October 19, 2026.
- Eleutherococcus senticosus and endurance in trained men (Kuo 2010). PubMed, read October 19, 2026.
- Astragalus. NCCIH, National Institutes of Health, read October 19, 2026.
- Green tea for weight loss and maintenance (2012). Cochrane Database of Systematic Reviews, read October 19, 2026.
- Gymnema sylvestre and glycemic control: meta-analysis. PubMed, read October 19, 2026.
- Forskolin and body composition in overweight men (Godard 2005). PubMed, read October 19, 2026.
- Capsaicinoids and energy intake: meta-analysis. PubMed, read October 19, 2026.
- Grapefruit Juice and Some Drugs Don't Mix. US Food and Drug Administration, read October 19, 2026.
- Ginseng for erectile dysfunction (2021). Cochrane Database of Systematic Reviews, read October 19, 2026.
- Raspberry ketone: research summary. PubMed, read October 19, 2026.
- Glutamine supplementation and athletic performance: meta-analysis. PubMed, read October 19, 2026.
- Tyrosine and cognition under stress. PubMed, read October 19, 2026.
- L-arginine and blood pressure: dose-response meta-analysis. PubMed, read October 19, 2026.
- Beta-alanine and exercise capacity: systematic review and meta-analysis. PubMed, read October 19, 2026.
- Licorice consumption and blood pressure: systematic review and meta-analysis. PubMed, read October 19, 2026.
- Oral GABA for stress and sleep: systematic review. PubMed, read October 19, 2026.
- L-ornithine, fatigue and sleep in workers: RCT. PubMed, read October 19, 2026.
- Tryptophan and sleep: meta-analysis. PubMed, read October 19, 2026.
- L-carnitine and weight loss: meta-analysis of 37 RCTs. PubMed, read October 19, 2026.
- Clinical Practice Guideline: Tinnitus (Tunkel et al., 2014). Otolaryngology, Head and Neck Surgery, read October 19, 2026.
- Tinnitus. NIDCD, National Institutes of Health, read October 19, 2026.
This page is general information, not medical advice. Dietary supplements are not reviewed by the FDA for safety or effectiveness before they are sold and are not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before taking any supplement, especially if you are pregnant, nursing, take medication or have a health condition.
