Blackstone Labs - Growth - 90 Capsules

Blackstone Labs Growth is a natural GH support and sleep optimization formula taken before bed — six active ingredients targeting three parallel mechanisms: endogenous growth hormone stimulation, sleep architecture improvement, and testosterone-adjacent hormonal support. The formula operates at night because the pituitary gland's primary HGH secretion pulse occurs during deep sleep, specifically during slow-wave sleep stages. Growth's design is to amplify that natural nocturnal HGH release window through ingredients that increase GH secretion, improve sleep quality and REM/slow-wave sleep time, and support the downstream hormonal environment. 90 capsules, 30 servings. Safe for men and women. No cycling required. Take 3 capsules 30 minutes before bed. California Prop 65 Warning applies.†

Supplement Facts — Blackstone Labs Growth (Per 3-Capsule Serving)

• Vitamin D3 (as Cholecalciferol) — 1,500 IU (375% DV)
• 4-Aminobutanoic Acid (GABA) — 750mg
• Velvet Bean Extract (Mucuna Pruriens)(seed)(min 15% L-Dopa) — 590mg
• Stinging Nettle Extract (Urtica Dioica)(root) — 500mg
• Valerian Extract (root)(0.8% Valerenic Acids) — 200mg
• BioPerine (Black Pepper Fruit Extract, 95% Piperine) — 10mg
• Melatonin — 3mg
• Other Ingredients: Gelatin (Capsule), Magnesium Stearate, Silicon Dioxide
• 90 capsules per container. 30 servings. 3 capsules = 1 serving.
• Take 3 capsules 30 minutes before bedtime. Do not exceed 3 capsules daily.
• Safe for women. No cycling required.
• Manufactured on shared equipment that also processes eggs, wheat, and soy (lecithin).
• California Prop 65 Warning applies.

How Blackstone Labs Growth Works — The Nocturnal HGH Window

Human Growth Hormone is not secreted at a constant rate throughout the day. It is released in pulsatile bursts — approximately 7-10 pulses over a 24-hour period — with the single largest and most anabolically significant pulse occurring in the first 2-3 hours of sleep, coinciding with the first slow-wave (deep) sleep stage of the night. During this nocturnal pulse, the pituitary gland releases the majority of the day's total HGH into circulation. This HGH then travels to muscle tissue, fat cells, and the liver — where it stimulates IGF-1 (Insulin-Like Growth Factor 1) production, promotes lean mass accretion, accelerates lipolysis (fat cell breakdown for energy), and drives the cellular repair and protein synthesis that constitute overnight recovery.†

The magnitude of this nocturnal HGH pulse is directly influenced by two factors: the depth and duration of slow-wave sleep reached, and the availability of the neurotransmitters and signaling molecules that govern pituitary GH secretion. Growth targets both. Melatonin and Valerian improve sleep onset and sleep architecture to maximize slow-wave sleep time. GABA and Mucuna Pruriens (L-Dopa) target the neurotransmitter environment that governs GH release from the pituitary.†

Ingredient Deep Dive

GABA (4-Aminobutanoic Acid) — 750mg

GABA (gamma-aminobutyric acid) is the primary inhibitory neurotransmitter in the central nervous system. Its name appears straightforwardly on the label as 4-Aminobutanoic Acid — the IUPAC chemical name for the same compound. In the context of Growth, GABA serves two distinct functions.†

First, GABA's CNS inhibitory activity promotes relaxation and sleep onset by reducing neuronal excitability — the same mechanism through which GABA-enhancing sleep aids (including benzodiazepines and GABA-B agonists like baclofen) produce sedation, though at vastly lower intensity through supplemental GABA doses. At 750mg, Growth provides a dose in the range where research on oral GABA supplementation has documented relaxation effects and improvements in sleep quality scores.†

Second — and more central to Growth's GH positioning — research on GABA supplementation in the context of exercise and sleep has documented increases in resting growth hormone concentrations. A key study found that GABA administration significantly increased plasma GH levels at rest compared to placebo, with the effect mediated through GABA's stimulation of pituitary somatotroph activity. The proposed mechanism involves GABA's inhibition of somatostatin — the hormone that suppresses GH release from the pituitary. By reducing somatostatin activity, GABA effectively releases the brake on pituitary GH secretion, allowing the natural nocturnal GH pulse to be larger. This dual sleep-improvement and GH-stimulation mechanism is why GABA anchors the Growth formula at its largest dose.†

Velvet Bean Extract (Mucuna Pruriens)(min 15% L-Dopa) — 590mg

Mucuna Pruriens is a tropical legume whose seeds contain naturally occurring L-DOPA (levodopa) — a direct precursor to dopamine that crosses the blood-brain barrier and rapidly elevates central dopamine levels. The seed extract in Growth is standardized to a minimum of 15% L-Dopa content, meaning each 590mg serving delivers at least 88.5mg of actual L-DOPA.†

L-Dopa's relevance to GH release is direct and well-established: dopamine is a potent stimulator of GH secretion from the pituitary gland through D2 receptor activation. Research on L-DOPA administration consistently documents significant acute elevations in serum GH — in some studies producing increases exceeding 200% above baseline within 60-90 minutes of administration. The dopaminergic mechanism acts independently from GABA's somatostatin-inhibition pathway, making the two GH-stimulating mechanisms in Growth additive rather than redundant.†

Mucuna Pruriens also contains additional alkaloids — serotonin, 5-HTP, and nicotine alkaloids — that contribute to the overall sleep-supportive and mood-enhancing profile. The natural serotonin content of Mucuna supports the conversion pathway to melatonin and may amplify the melatonin component's effects. The libido-enhancing effects frequently reported by users of Mucuna Pruriens are consistent with dopamine's role in motivation and sexual drive, and with the testosterone-supportive effects documented in human research on Mucuna supplementation in men with fertility challenges.†

Stinging Nettle Extract (Urtica Dioica Root) — 500mg

Stinging nettle root extract — specifically the root rather than the leaf — contains compounds that bind to Sex Hormone Binding Globulin (SHBG), the protein that binds to and inactivates both testosterone and estrogen in circulation. Bound testosterone is biologically inactive — it cannot bind to androgen receptors and produce anabolic effects. Free (unbound) testosterone is the bioactive fraction. By competing with testosterone for SHBG binding sites, nettle root extract can increase the free testosterone fraction without altering total testosterone production.†

This mechanism makes nettle root a logical complement to Growth's GH-stimulating approach: GH drives IGF-1 production which stimulates anabolic tissue growth, while the freed testosterone fraction from nettle root's SHBG binding provides the androgen receptor activation that drives muscle protein synthesis on the testosterone-mediated pathway. The two anabolic signals operate through different receptors and different signaling cascades, making them genuinely complementary rather than redundant.†

Valerian Extract (root)(0.8% Valerenic Acids) — 200mg

Valerian (Valeriana officinalis) root extract is one of the most extensively studied natural sleep aids in clinical literature. Its active compounds — valerenic acids — produce sedative and anxiolytic effects through multiple mechanisms: GABA-A receptor potentiation (similar to benzodiazepines but at much lower intensity), inhibition of GABA reuptake and enzymatic breakdown, and potential serotonin receptor activity. Standardized to 0.8% valerenic acids, Growth's Valerian extract delivers a reproducible, consistent dose of the active fraction.†

Research on valerian root at doses comparable to Growth's 200mg inclusion consistently shows improvements in sleep latency (time to fall asleep), sleep quality subjective scores, and sleep architecture — particularly in the slow-wave sleep stages most critical to GH pulsatility. The combination of Valerian and GABA in Growth addresses sleep architecture from two distinct but complementary mechanisms: GABA provides direct CNS inhibition and pituitary GH stimulation, while Valerian potentiates GABAergic signaling and slows GABA breakdown to extend and sustain the sleep-promoting effect.†

Melatonin — 3mg

Melatonin is the pineal gland's circadian rhythm hormone — its endogenous rise in the evening signals the body that sleep is approaching and initiates the physiological preparation for sleep onset. Supplemental melatonin at 3mg is a well-established and broadly researched sleep onset aid, effective for improving sleep latency and resetting circadian rhythm disruption (shift work, travel across time zones, inconsistent sleep schedules). At 3mg, Growth provides the dose used in the majority of positive melatonin sleep research — lower doses (0.5-1mg) can also be effective, but 3mg represents the standard supplemental dose for sleep aid purposes.†

Melatonin's relevance to GH extends beyond its sleep-initiating effects: independent research has documented melatonin's ability to directly stimulate GH secretion from the pituitary through melatonin receptor activation on somatotroph cells. Combined with GABA's somatostatin inhibition and Mucuna's dopamine-mediated GH stimulation, melatonin contributes a third GH-stimulating mechanism — all three operating through different receptor systems and therefore potentially additive in total GH secretion impact.†

Vitamin D3 — 1,500 IU (375% DV)

Vitamin D3 (cholecalciferol) at 1,500 IU — nearly four times the official daily value — serves as the foundational hormonal support ingredient in Growth. Vitamin D is a secosteroid hormone that acts on nuclear receptors throughout the body, with well-documented roles in testosterone synthesis (Leydig cells in the testes express vitamin D receptors and require adequate vitamin D status for normal testosterone production), bone mineral density, immune function, and muscle function. Research on vitamin D supplementation in vitamin D-deficient men consistently shows increases in total testosterone — in some studies producing 25-30% increases after supplementation in individuals with confirmed deficiency. Even in non-deficient individuals, vitamin D status correlates positively with testosterone levels and GH axis function. The 1,500 IU dose in Growth ensures adequate Vitamin D status to support the hormonal environment that Growth's other ingredients are optimizing.†

BioPerine (95% Piperine) — 10mg

BioPerine is Sabinsa Corporation's patented standardized black pepper extract, included in Growth as a bioavailability enhancer. Piperine inhibits several intestinal and hepatic enzymes — including CYP3A4 and P-glycoprotein — that are responsible for first-pass metabolism of many compounds. Research on BioPerine consistently shows improvements in the absorption rate and bioavailability of co-administered nutrients and compounds. At 10mg, BioPerine's standard effective dose, it increases the fraction of Mucuna's L-Dopa, valerian's valerenic acids, and the other active ingredients in Growth that reach systemic circulation rather than being degraded in the GI tract and liver.†

Frequently Asked Questions About Blackstone Labs Growth

1. Will Growth make me feel groggy in the morning?
   The primary side effect reported by Growth users is drowsiness immediately after taking it — which is intentional and appropriate, since it is a pre-bedtime formula. Most users report that the grogginess does not persist into the morning when Growth is taken 30 minutes before a full night of sleep (7-9 hours). The melatonin at 3mg metabolizes relatively quickly; the valerian and GABA effects are also short-acting relative to a full sleep duration. Users who take Growth too close to an insufficient sleep window (less than 6 hours) may experience more next-morning grogginess. Blackstone's own answer to this question is that Growth should not cause morning drowsiness when used as directed.†
2. Does Growth need to be cycled?
   Blackstone Labs states no cycling is required with Growth. Unlike prohormones and androgen-based supplements that suppress the HPG axis and require post-cycle therapy, Growth works through natural neurotransmitter and sleep mechanisms that do not create hormonal suppression or receptor downregulation requiring a recovery period. Some users choose to cycle melatonin-containing products periodically to maintain natural melatonin sensitivity, but this is a conservative personal preference rather than a medical necessity with Growth's 3mg dose.†
3. Is Growth appropriate for women?
   Yes — Blackstone Labs explicitly states Growth is safe for women, noting specific benefits for hair, skin, and nails. GH is not exclusively a male anabolic hormone — women naturally produce and rely on GH for body composition, recovery, skin quality, and metabolic function at least as much as men. The Mucuna Pruriens component's dopamine-enhancing effects can also support mood and libido in women. The nettle root SHBG-binding effect on free testosterone is also relevant for women who have anabolic training goals, as free testosterone plays a meaningful role in female muscle development even at normal female testosterone levels.†
4. Can I stack Growth with Blackstone Labs Halo Elite or prohormone products?
   Yes — Growth is commonly stacked with Blackstone's other natural muscle builders and is frequently used during prohormone cycles as a sleep and recovery support addition, or post-cycle as a natural GH support product during the recovery phase. Growth does not interact with Halo Elite's phytoandrogenic mechanism, does not suppress the HPG axis, and does not require on-cycle support of its own. For users on a Blackstone prohormone cycle who want overnight recovery optimization on top of their main cycle support (Gear Support), Growth is the natural addition.†

How to Take Blackstone Labs Growth

Take 3 capsules 30 minutes before bedtime. Do not exceed 3 capsules per day. Use only before bedtime — the drowsiness effect is intentional and the formula is designed for nighttime use only. Ensure you have 7-9 hours of sleep time available when taking Growth to avoid morning grogginess. Can be taken consistently without cycling. California Prop 65 Warning applies.†

Why Buy at Get Yok'd

• Real-time inventory across all five Southern California stores
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• Authorized retailer of Blackstone Labs
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Who Should Not Take Blackstone Labs Growth

• Not for use by persons under 18 years of age
• Not for pregnant or nursing women
• Do not use if you are at risk for or currently being treated for diabetes — the formula affects insulin sensitivity and GH pathways that interact with blood glucose regulation
• Do not use if you are at risk for or currently being treated for high blood pressure
• Consult a physician before use if you have any current or pre-existing medical condition
• Consult a physician before use if taking any prescription medications — particularly dopaminergic medications, MAO inhibitors, or sedatives, due to the Mucuna Pruriens L-Dopa content and the combined sedative mechanisms of GABA, Valerian, and Melatonin
• Do not drive or operate machinery after taking Growth — causes drowsiness
• Do not exceed 3 capsules per day
• Do not use if the seal has been tampered with
• California Residents: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Visit P65Warnings.ca.gov for more information.
• Keep out of reach of children

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.