Editorial Notice: Top Shelf Mushrooms is an independent publication covering functional mushroom research and education. Top Shelf Mushrooms has a commercial relationship with Pilly Labs — no such relationship exists with Double Wood Supplements, and this review contains zero affiliate links. See our Affiliate Disclosure for full details. Nothing on this page constitutes medical advice. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, support, or prevent any disease. Individual results vary.
By Top Shelf Mushrooms Editorial Team
Quick Answer: Double Wood Lion’s Mane Mushroom delivers 1,000mg of organic Hericium erinaceus per 2-capsule serving (500mg per capsule) — and unlike most single-species competitors in this category, it is not an extract. Double Wood confirmed directly in response to a customer question that the product is ground whole mushroom, not a concentrated extract. The 120-capsule bottle runs $22.95 direct from doublewoodsupplements.com, backed by a 30-day money-back commitment on the first bottle. Pricing, the current Supplement Facts panel, and the brand’s own testing documentation were independently verified for this report as of August 2026.
Search “Double Wood Lion’s Mane review” and the results are almost entirely unboxing videos and one-paragraph testimonials: TikTok clips, Amazon Live streams, and personal-anecdote blog posts that describe how someone’s memory or focus felt better after a few weeks. None of them touch the two things that actually distinguish this specific product from most of its single-species competitors — that it’s raw ground mushroom rather than a concentrated extract, and that the brand’s own website currently displays two different sets of lab-testing documentation that don’t quite match each other. That’s the gap this review closes.
What Is Double Wood Lion’s Mane Mushroom?
Double Wood Lion’s Mane Mushroom is a single-ingredient dietary supplement built around Hericium erinaceus, sold in 120-capsule bottles at 500mg per capsule. The labeled serving size is 2 capsules, delivering 1,000mg per day. The current Supplement Facts panel describes the ingredient as “Organic Lion’s Mane (Hericium erinaceus) — entire fruiting body, mycelium, and extra-cellular compounds,” meaning the capsule contains the whole mushroom material rather than an isolated or concentrated fraction of it.
Double Wood Supplements is a Sharon Hill, Pennsylvania-based supplement company, BBB-accredited, that sells a broad catalog of single-ingredient nootropic and wellness supplements. The company positions itself around straightforward, single-ingredient formulas at accessible price points rather than proprietary blends, and publishes downloadable Certificates of Analysis for its products — a transparency practice worth noting, even though, as detailed below, the specific documentation currently displayed contains an internal inconsistency worth understanding before you rely on it.
Who This Is For
This product suits buyers who specifically want a plain, single-ingredient lion’s mane capsule without extraction claims, extract-ratio marketing, or beta-glucan percentage disclosures to evaluate — someone who wants the whole mushroom in capsule form at a low per-serving cost. It’s also a reasonable fit for anyone comparison-shopping who wants to understand how a raw-powder product’s dose math differs from the concentrated-extract products that dominate this category, since that distinction changes what a “1,000mg serving” actually means in practice.
Buyers focused on price will also find this relevant: at roughly $0.19 per capsule on the standard bottle, this sits toward the lower end of the single-species lion’s mane category compared to the beta-glucan-standardized extract products this domain has previously reviewed.
Who This Is NOT For
This is not the right product for buyers specifically seeking a standardized, concentrated extract with a disclosed beta-glucan percentage or extract ratio — Double Wood has confirmed directly that this is not an extract product, so buyers comparing it against extract-ratio-labeled competitors are not comparing equivalent things milligram-for-milligram. It’s also not the right choice for anyone who wants their purchase-channel commitment protected regardless of where they buy; as detailed in Pricing and Policies below, the brand’s refund commitment applies only to direct purchases from doublewoodsupplements.com, not to the same product bought through Amazon or other third-party retailers.
Anyone taking blood-thinning medication, diabetes medication, or immunosuppressants should not start this product without first talking to a healthcare provider — see our full Lion’s Mane safety guide for the specifics. The product label itself also advises against use during pregnancy or nursing, and instructs users not to exceed 6 capsules per day.
How Lion’s Mane Works
Lion’s mane’s relevance to cognitive support centers on hericenones and erinacines, two compound classes that laboratory research has shown can stimulate nerve growth factor (NGF) synthesis — NGF being a protein involved in neuron growth, maintenance, and survival. Because this product uses the entire fruiting body, mycelium, and extracellular compounds rather than an isolated extract fraction, it’s delivering the full spectrum of whatever compounds are naturally present in the ground mushroom material, at whatever concentration occurs naturally — not a concentrated or standardized dose of any specific compound. Our full breakdown of the NGF mechanism covers this in depth, including the distinction between fruiting-body and mycelium compound classes.
What We Verified
For this report, our editorial team independently verified the following, current as of August 2026: current pricing on doublewoodsupplements.com ($22.95 for one 120-capsule bottle, with two- and three-bottle multipack pricing also available); the current Supplement Facts panel as photographed on the product label; the 30-Day Money-Back Commitment terms, including the third-party-retailer exclusion; the company’s Sharon Hill, PA business address and BBB accreditation; and the product’s manufacturing claims (FDA-registered cGMP facility, USA manufacturing from globally sourced materials).
Two findings are worth flagging in the interest of full transparency, neither of which we’re treating as a red flag so much as a documented inconsistency buyers deserve to know about. First: the current product label lists “Other Ingredients” as hypromellose (capsule), microcrystalline cellulose, and vegetable stearate. Several other sources tied to this same product — including the brand’s own FAQ text on its current product page, and several third-party retailer listings (Vitacost, Natural Healthy Concepts) — describe the other ingredients as “hypromellose (capsule), rice flour” instead. These don’t match. The most likely explanation is a formulation update that wasn’t reflected everywhere the product is described; we’re treating the physically labeled panel as the current, authoritative version per our standard verification practice, and flagging the older “rice flour” references as likely outdated rather than currently accurate.
Second: the brand’s official product page currently displays a Certificate of Analysis table (Lab: Brand Nutraceuticals, Inc.; Lot 2430405; manufactured 12/2024; full potency, identity, heavy metal, and microbial panel, with a downloadable PDF) directly beneath the product description. Further down the same page, in the FAQ section, a written answer describes a different Certificate of Analysis entirely — a different lab (NutraSolutions USA, Deer Park, NY), a different lot (2302-67-1, dated June 2023), and different heavy-metal figures. Both appear on the same official page. We’re using the more recent, directly-linked COA (Brand Nutraceuticals, Lot 2430405) as the authoritative current documentation, since it matches the product images and has a downloadable source PDF, and treating the FAQ’s older lot reference as stale content that wasn’t updated when the current lot’s documentation was published. Our guide to reading a Certificate of Analysis walks through exactly what each section of a COA verifies and how we reached this conclusion, if you want to apply the same verification process yourself.
The Dose Math: Raw Powder vs. Extract
This is the detail most reviews of this product skip entirely, and it matters more here than for most competitors in this category. When we asked Double Wood directly (via the Q&A section of their own product page) whether this product is a 1:1 or 8:1 extract, the brand’s answer was unambiguous: “This product is not an extract. Our Lions Mane is ground up Lions Mane.” That’s a meaningfully different starting material than most of the other single-species lion’s mane products this domain has reviewed, which use standardized or concentrated extracts, and it changes how the labeled 1,000mg figure should be read.
A 1,000mg serving of raw ground mushroom and a 1,000mg serving of, say, a 14:1 concentrated extract are not delivering comparable amounts of the underlying active compounds — the extract has theoretically had ten-plus times more raw material concentrated into that same milligram weight, while the raw powder is simply 1,000mg of dried, ground mushroom with no concentration step applied. Our full dose math framework covers extract ratios in more detail, and our dedicated powder vs. extract explainer walks through this specific distinction end to end — but the practical takeaway here is that this product’s 1,000mg label and a competitor’s 1,000mg extract label are not measuring the same thing, even though they use the same unit.
Set against the human clinical trial doses referenced throughout this domain’s lion’s mane content — 3,000mg per day of dry lion’s mane powder in the Mori et al. 2009 trial, and 1,800mg in the Docherty et al. 2023 trial — this product’s labeled 1,000mg serving is, notably, closer in kind to those trial doses than an extract-based product’s labeled milligrams would be, since the Mori trial specifically used dry powder rather than a concentrated extract. That’s a genuine point in this product’s favor for buyers trying to approximate the research conditions: it’s measuring the same kind of material the most-cited trial used, even though the dose itself (1,000mg) still sits below the 3,000mg studied. The product label does note that an additional 1,000mg may optionally be taken later in the day, which would bring total daily intake to 2,000mg — still below the Mori trial’s 3,000mg, but closer to it than the base labeled serving alone.
Pricing and Policies
Direct from doublewoodsupplements.com, one 120-capsule bottle (a 60-day supply at the labeled 2-capsule serving) is priced at $22.95. A Double Pack runs $43.61 and a Triple Pack runs $61.97, both representing a modest per-bottle discount over buying single bottles repeatedly. The product is also sold through Amazon, where pricing has fluctuated between roughly $19.95 and $22.95 depending on current promotions, and through several other retailers including Vitacost, PureFormulas, and Natural Healthy Concepts.
Double Wood’s refund policy is a 30-Day Money-Back Commitment that applies to the first bottle of any purchase, including multipacks — buy a three-pack, and if you’re not satisfied, the brand will refund one bottle’s worth while you keep the first bottle, provided you return the remaining unopened bottles within 30 days and cover your own return shipping. This commitment applies only to purchases made directly through doublewoodsupplements.com. Per the brand’s own refund policy page, orders placed through Amazon or any other third-party retailer are explicitly excluded — the policy states plainly that if you purchased through a third-party seller, you need to contact that seller directly rather than Double Wood. Subscription orders that aren’t canceled or skipped before processing are also excluded from the commitment.
Double Wood Supplements can be reached at hello@doublewoodsupplements.com, and the company holds BBB accreditation under its Sharon Hill, PA business listing. For more on what drives price differences across this category, and what to verify before buying any budget-tier supplement, see our guide to budget Lion’s Mane supplements.
Frequently Asked Questions
Is Double Wood Lion’s Mane legit?
Based on our verification, yes, with two documented caveats worth knowing before you buy. The company publishes a downloadable Certificate of Analysis, discloses its Supplement Facts panel and manufacturing claims (FDA-registered cGMP facility, USA manufacturing), and maintains BBB accreditation. However, we found an inconsistency between the current product label’s “Other Ingredients” list and older references to the same product elsewhere on the brand’s own site, and a second inconsistency between two different Certificate of Analysis documents both displayed on the current official product page. Neither finding suggests the product itself is unsafe or mislabeled in a way that matters for the active ingredient content, which is consistently reported as 1,000mg of organic Lion’s Mane across every source we checked — but “legit” in the sense of internally consistent documentation is a more qualified yes than a simple thumbs-up, and buyers who care about documentation consistency should know both gaps exist.
Is Double Wood Lion’s Mane an extract or raw powder?
It is raw ground mushroom, not an extract. Double Wood confirmed this directly in response to a customer question on their own product page: “This product is not an extract. Our Lions Mane is ground up Lions Mane.” This distinguishes it from several competitors in this category that use concentrated extracts (commonly in 8:1 to 14:1 ratios) standardized to a disclosed beta-glucan percentage. Neither approach is inherently superior — raw powder more closely resembles the dry powder used in the most-cited human clinical trial (Mori et al. 2009), while a standardized extract offers more precise, repeatable dosing of specific compound classes. The practical implication is that this product’s 1,000mg label and an extract product’s 1,000mg label are not measuring equivalent material, and buyers comparing products purely on labeled milligrams without accounting for this distinction are not making an apples-to-apples comparison.
Why do some listings for this product mention rice flour and others don’t?
This is a genuine discrepancy we found and verified rather than one we’re speculating about. The current physical product label lists “Other Ingredients” as hypromellose (capsule), microcrystalline cellulose, and vegetable stearate. Several other sources describing this same product — including the brand’s own FAQ text and multiple third-party retailer listings — list “hypromellose (capsule), organic rice flour” instead, with no mention of microcrystalline cellulose or vegetable stearate. The most plausible explanation is a formulation change that updated the actual product but wasn’t reflected in every place the product is described online, since supplement manufacturers do periodically adjust flow-agent and capsule-filler ingredients without changing the active ingredient dose. We’re treating the current photographed label as authoritative. Anyone with a specific sensitivity to rice, cellulose, or stearate-based flow agents should verify the current ingredient list directly against their specific bottle’s label before purchasing, since online descriptions may not reflect the exact lot you receive.
What are the side effects of Lion’s Mane mushroom?
Published human research shows a strong safety record for lion’s mane at typical supplemental doses, with rare reports of allergic reactions in individuals sensitive to mushrooms. Because lion’s mane may affect blood clotting, blood sugar regulation, and immune signaling, people taking anticoagulant or antiplatelet medications, diabetes medications, or immunosuppressants should consult a healthcare provider before starting supplementation — these are potential interaction categories rather than confirmed common side effects in the general population. Double Wood’s own label advises not exceeding 6 capsules per day and avoiding use during pregnancy or nursing. Our full safety guide covers each interaction category and the supporting evidence in more detail, including which symptoms would warrant contacting a doctor.
Final Assessment
On the core question of what you’re actually buying, Double Wood Lion’s Mane Mushroom delivers exactly what its label states: 1,000mg of raw, ground, organic Hericium erinaceus per serving, at one of the lower price points in this category, backed by a downloadable Certificate of Analysis. Where this review adds something the rest of the SERP doesn’t: this product is confirmed raw powder rather than an extract — a meaningfully different starting material than most competitors this domain has covered — and the brand’s own official page currently displays two internally inconsistent sets of ingredient and testing documentation that a buyer comparing this product against extract-based competitors should understand before assuming the numbers translate directly. Neither finding makes this a bad product; both are the kind of documentation gaps a careful, independent review is supposed to surface rather than gloss over.
For the research behind lion’s mane’s cognitive mechanism, see our NGF research overview. For the full dose-math framework referenced above, including how extract ratios change the comparison, see our Lion’s Mane research breakdown. Anyone considering this product alongside medication should read our safety and interactions guide. For a side-by-side look at how this product compares to five other lion’s mane brands across the broader category, see our general comparison guide. And for a narrower comparison specifically among other confirmed raw-powder (non-extract) products, see our raw powder comparison guide.
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