1 Product identity
Ingredient risk
Contains restricted ingredients
P6 Extreme Black
BrandCellucor→Other Combinations Capsule 23 ingredients 1 banned 4 caution DSLD #30765Net contents: 90 Capsule(s)
Target: Adults and Children 4 years and above
DSLD entry: 2014-02-26
2 Ingredients (23)
IngredientGroupSafety
Nootropic Testosterone MatrixBlend (Combination)—
D-SerineSerine—
Alpha GPCAlpha-GPC—
3,3'-DiindolylmethaneDiindolylmethane—
Androgen Support MatrixBlend—
Mucuna pruriens Seed ExtractCowhage—
Vegetable CelluloseCellulose—
GelatinGelatin—
FD&C Blue #1Color—
FD&C Red #40Color—
Ingredient amounts require the full DSLD label. View full label at NIH DSLD →
⛔ Contains an ingredient banned in ≥1 country
DHEA 🇨🇦 🇬🇧 🇪🇺 🇦🇺 — Not approved for OTC sale as supplement.
⚠️ Use with caution — restricted in some markets
Vitamin D — Granulomatous diseases (sarcoidosis, TB) — unregulated extra-renal CYP27B1 can cause life-threatening hypercalcemia even at standard doses [2][21]
Vitamin B6 — Sensory neuropathy from chronic high-dose B6 (>200 mg/day) — presents as numbness, ataxia. Can be irreversible. Often self-prescribed by patients…
Magnesium — Severe deficiency (<0.50 mmol/L) causes secondary hypocalcemia and hypokalemia that will not correct until magnesium is repleted first [1].
Zinc — Chronic zinc >40 mg/day without copper causes copper deficiency: anemia, neutropenia, myeloneuropathy [1].
3 Safety cross-reference
Vitamin D — Use with Caution
⚠ Hypercalcemia at >10,000 IU/day
⚠ Vascular calcification risk
Vitamin B6 — Use with Caution
Olive Leaf Extract — Limited Evidence
⚠ May lower blood pressure and glucose
⚠ GI effects
Copper — Conditionally Safe
⚠ Hepatotoxicity at high doses
Magnesium — Use with Caution
⚠ Diarrhea (especially oxide)
⚠ Accumulates in renal impairment
DHEA — Banned in ≥1 country
⚠ Hormonal: acne, hirsutism, voice deepening
⚠ May promote hormone-sensitive cancers
Zinc — Use with Caution
⚠ Copper deficiency at >40 mg/day
⚠ Nausea, metallic taste
Andrographis — Conditionally Safe
⚠ GI discomfort
⚠ Headache
Silicon — Generally Safe
⚠ Very low toxicity
4 Label claims
• All Other
• Structure/Function
5 Data source
DSLD ID30765
Full labelView at NIH DSLD →
SourceOffice of Dietary Supplements, NIH
Market statusOn market
Entry date2014-02-26
6 More from Cellucor
View Cellucor Safety Scorecard → 76 products
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Vancouver
Pkhakadze G. P6 Extreme Black — product analysis [Internet]. Tbilisi: Public Health Institute of Georgia; 2026 [cited 2026 Oct 23]. Available from: https://supplement.ge/products/p6-extreme-black-30765/
CC BY 4.0. Product data from NIH DSLD; safety analysis by SupplementIndex.
GP
Analyzed by SupplementIndex
PHIG · Editor-in-Chief: Prof. Giorgi Pkhakadze, MD, MPH, PhD
Product data sourced from the NIH Dietary Supplement Label Database (DSLD). Safety cross-referencing by SupplementIndex. This analysis is for informational purposes only. For corrections: info@accreditation.ge.
Publisher: PHIG
Publisher: PHIG