Source Naturals Saw Palmetto Extract 320 mg Review
#4 of 9 · Cleanest Extraction✓ Label verified · Supplement Facts read Sep 7, 2026Real retailer photo, cut out. Label unedited.
Consider it. Clean extraction and the right dose, held back by a small bottle. 320 mg liposterolic extract with a hexane-free callout is a genuine quality signal.
approx $10-14approx $0.40/serving
Why It Scores 7.3 — And The Label Line Behind Each Number
Standardization & Form
30% of scoreLiposterolic 320 mg extract in a softgel, with a hexane-free extraction that is a real purity advantage. Slightly behind top picks because the exact fatty-acid percentage is less explicitly stated than Lindberg's 85-95%.
- Form
- Softgel (once daily)
- Standardization
- Liposterolic extract; hexane-free
Dose vs Clinical Range
25% of score320 mg in one softgel is precisely the clinical daily dose.
- Dose
- 320 mg liposterolic extract
Third-Party Testing & Purity
20% of scoreHexane-free extraction is disclosed, but there is no prominent independent third-party COA, so testing transparency lags the leaders.
- Testing
- Hexane-free extraction (no published independent COA)
Tolerability & Safety
15% of scoreStandard saw palmetto tolerability; the cleaner-solvent process is a mild reassurance for the residue-conscious.
Value / Cost per Dose
10% of score30 softgels for ~$10-14 is fine as a one-month trial but expensive per dose over the months a real course requires.
- Count
- 30 softgels (30-day supply)
- Cost per dose
- ~$0.33-0.47/day
Label verified. Every figure read from the Supplement Facts photo, Sep 7, 2026.
Marketing Claims Vs. Reality
Hexane-free extraction avoids petrochemical solvent residues
The product markets a hexane-free extraction; hexane is a common industrial solvent for oily botanicals, so avoiding it is a legitimate purity claim on the label.
Delivers the 320 mg clinical dose
The label states 320 mg of liposterolic extract per softgel, matching the trial dose.
Cleaner extraction translates into better clinical results
Solvent choice affects residue purity, not proven efficacy. The clinical BPH literature (Bent 2006, Barry 2011) is mixed regardless of extraction method.
What Our Test Actually Found
Solvent purity is a real but narrow win
Hexane-free extraction is a genuine quality marker that most competitors do not advertise. It reassures residue-conscious buyers, but it does not change the underlying efficacy question and should not be read as a performance upgrade.
The 30-count bottle is the problem
A one-month bottle is a mismatch for a supplement that takes months to evaluate. Cost per dose lands three to four times the Lindberg bottle. Buy the small bottle only as a short tolerability trial before committing to a bulk pick.
Full analysis: all pros & cons (6), buy if / skip if
- Exact 320 mg clinical dose in one softgel
- Hexane-free extraction is a legitimate solvent-purity advantage
- Established brand with a clean, additive-light softgel
- Good short-term trial size
- 30-count bottle makes a real multi-month course expensive
- No published independent third-party COA
- Exact 320 mg clinical dose in one softgel
- Hexane-free extraction is a legitimate solvent-purity advantage
- Established brand with a clean, additive-light softgel
- 30-count bottle makes a real multi-month course expensive
- No published independent third-party COA
320 mg liposterolic extract with a hexane-free callout is a genuine quality signal. Consider it if solvent purity is your priority. But a 30-count bottle makes a multi-month trial pricey, and there is no published third-party COA - the Lindberg bottle costs far less per dose.
Source Naturals nails the fundamentals: 320 mg of liposterolic extract in a single softgel, the exact dose used in the prostate research. Its differentiator is a hexane-free extraction, a legitimate solvent-purity selling point for anyone wary of residual petrochemical solvents. Where it slips is packaging and documentation - a 30-count bottle makes cost per day high for a supplement you need to run for months, and it does not publish an independent COA. Good softgel, awkward economics.
A clean softgel with awkward economics
Source Naturals is a well-made 320 mg liposterolic softgel whose hexane-free extraction genuinely distinguishes it on purity. But the 30-count bottle is built for a one-month trial, not the multi-month course saw palmetto actually requires, and the per-dose cost reflects that. If solvent purity is your top concern, it earns the cleanest-extraction nod; otherwise the identically dosed Lindberg bottle is the better long-run buy.
If This Doesn’t Fit — Try These
02Lindberg 320 mg
This is the value champion of the list: it matches the trials on both standardization and dose, then undercuts almost everything on price with a six-month bottle.
01Life Extension PalmettoGuard
If you want the extract that most closely resembles what researchers actually studied, this is it: CO2-extracted liposterolic saw palmetto at the full clinical dose with a phytosterol that reinforces the DHT-blocking rationale.
Quick Answers
Is hexane-free extraction worth paying for?
It is a legitimate purity feature if you want to avoid residual industrial solvents, but it does not improve clinical efficacy. Weigh it against the higher per-dose cost of the small bottle.
Should I buy the 30-count or a bigger bottle?
Use the 30-count as a short tolerability trial. For a real multi-month course, a 180-count value bottle like Lindberg costs far less per dose.
Sources & Further Reading
2 peer-reviewed sources, each linked to PubMed
- [1] Bent S, Kane C, Shinohara K, et al. Saw palmetto for benign prostatic hyperplasia. N Engl J Med. 2006;354(6):557-566. PMID 16467543 — Saw palmetto for benign prostatic hyperplasia. A rigorous RCT of 320 mg/day standardized extract found no benefit over placebo, independent of extraction method.
- [2] Tacklind J, MacDonald R, Rutks I, Stanke JU, Wilt TJ. Serenoa repens for benign prostatic hyperplasia. Cochrane Database Syst Rev. 2012;12:CD001423. PMID 23235581 — Serenoa repens for benign prostatic hyperplasia. Pooling 32 trials, saw palmetto did not outperform placebo for urinary symptoms even at higher doses.
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