What Is Renew?
Deep sleep and metabolic regeneration formula targeting HGH secretion during slow-wave sleep
Specifically targets slow-wave sleep (SWS) — during which HGH secretion is at its peak. By maximizing SWS quality and duration, Renew claims to amplify the nighttime HGH pulse that drives fat mobilization, muscle repair, and metabolic rate restoration.
How Does Renew Work?
Specifically targets slow-wave sleep (SWS) — during which HGH secretion is at its peak. By maximizing SWS quality and duration, Renew claims to amplify the nighttime HGH pulse that drives fat mobilization, muscle repair, and metabolic rate restoration.
Ingredient Analysis (With PubMed Citations)
Our lead reviewer Dr. Sarah Mitchell (RD, Ph.D. Nutritional Biochemistry) analyzed every ingredient against published peer-reviewed research. Each ingredient includes a direct PubMed citation.
At the highest studied dose — significantly improves sleep quality, sleep onset latency, and total sleep time per 2019 RCT in Medicine.
📋 PubMed Citation →Low physiological dose synchronizes circadian rhythm without grogginess associated with higher pharmacological doses.
📋 PubMed Citation →Supports GABA production and alpha-wave brain activity. At 200mg — matching clinical trial levels for sleep quality improvement.
📋 PubMed Citation →Serotonin and melatonin precursor. Increases total sleep time and specifically increases slow-wave sleep proportion.
📋 PubMed Citation →Has been shown to stimulate HGH secretion, particularly during slow-wave sleep when HGH release is already at its natural peak.
📋 PubMed Citation →Works synergistically with arginine for HGH stimulation. The arginine/lysine combination is one of the most studied natural secretagogue pairs.
📋 PubMed Citation →Pros & Cons
Pros
- Ashwagandha at 600mg — the highest evidence-backed clinical dose for sleep improvement
- Melatonin at 0.5mg — avoids grogginess and doesn't suppress natural production
- Arginine + Lysine HGH support is one of the most studied natural secretagogue combinations
- 5-HTP specifically increases slow-wave sleep proportion
- Addresses the HGH-fat loss connection
Cons
- 60-day guarantee is short
- 5-HTP + melatonin should not be used with SSRIs or MAOIs
- Powder format requires nightly preparation
- HGH-boosting claims are modest compared to pharmaceutical approaches
Final Verdict
Renew is one of the most thoughtfully constructed sleep-metabolism supplements in our BuyGoods portfolio. Ashwagandha at 600mg, low-dose melatonin, and arginine/lysine HGH support all align with published clinical evidence. For adults who both sleep poorly and struggle with metabolic weight, Renew addresses both mechanisms simultaneously.
Renew
Overall Rating: 4.2/5 · Based on 389 reviews
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