Double Wood Supplements prioritizes single-ingredient formulations to support diverse fitness and lifestyle goals. The brand’s offerings may provide additional support for stress reduction, sleep support, immunity, cognitive health, and cardiovascular function.
Its offerings are available in multiple formats to support palatability, including powders, liquid drops, capsules, and tablets. Beyond singular options, the brand also offers curated bundles like the Beauty Bundle, Sleep Bundle, and Mushroom Bundle.
This review examines everything you need to know about the brand, including its formulation and quality standards, core positioning, range of offerings, and real user experiences with the brand’s offerings.
About Double Wood Supplements
Founded in 2013 by twin brothers Reese and Evan Wood, Double Wood Supplements offers multiple products across different interests. These may cover areas like metabolism, focus, joint support, gut health, hormone balance, and related categories.
Some signature offerings in the brand’s catalog include products like Tongkat Ali Extract, Magnesium L-Threonate (Magtein), TUDCA, Phosphatidylserine, Berberine, Lion’s Mane Mushroom, and Quercetin. Other offerings include options such as Ashwagandha, Valerian Root Drops, Pre-Workout (Blue Raspberry), and Glucosamine Chondroitin.
According to the official website, all manufacturing is conducted in the USA under GMP-compliant standards and in FDA-registered facilities. The manufacturers also claim that offerings undergo third-party testing, with a stated focus on publishing ingredient test results for transparency.
Double Wood Supplements Bestsellers
Tongkat Ali Complex
Tongkat Ali Complex is formulated to support physical performance and male vitality, especially by supporting testosterone-related function, sexual vitality, exercise endurance, and stress resilience. It may be particularly helpful if you are experiencing age-associated declines in energy, motivation, and recovery capacity.
The formulation uses yellow Tongkat Ali, which contains quassinoids, eurycomaosides, eurycolactones, and saponins, plant actives linked to energy metabolism and adaptive response pathways. These compounds may help improve your body’s ability to manage physical stress and improve training output by modulating cortisol dynamics and supporting more efficient energy use during demanding activity.
Tribulus terrestris fruit extract is further included as part of the Tongkat Ali Complex formula. It contains steroidal saponins, which may offer libido support and promote physical performance and endurance. Tribulus could support androgen-related signaling indirectly, and its inclusion in the formulation may also help support sexual performance and vitality.
Fadogia Agrestis
Fadogia Agrestis is formulated to support vitality and athletic performance, with emphasis on supporting hormonal signaling and libido-related function. The product may further support testosterone-related pathways, including training output, muscle development, motivation, and sleep quality.
At the core of the formulation is Fadogia Agrestis extract that works by mimicking luteinizing hormone (LH)-like activity. Such effects could support the body’s internal testosterone production.
Fadogia Agrestis formulation also contains multiple plant compounds, including saponins, anthraquinones, flavonoids, and glycosides. Saponins are commonly associated with adaptogenic and hormone-support effects because of their ability to interact with steroid-related signaling pathways. Flavonoids support antioxidant defense and inflammatory regulation, which may help maintain tissue recovery and exercise tolerance by reducing oxidative burden during training sessions.
Magnesium L-Threonate
Magnesium L-Threonate (Magtein) intends to support cognitive health and brain function by helping elevate magnesium levels in the brain. Magnesium is an essential mineral and a major electrolyte involved in neuromuscular signaling, energy metabolism, and nervous system regulation. The formulation could help support healthy serum magnesium levels and minimize the risk of deficiency.
Magnesium L-threonate (Magtein) formulation may also support and improve your sleep quality. It may calm an overactive nervous system by influencing GABAergic signaling, regulating stress-response tone, and supporting muscle relaxation via its involvement in calcium channel control at the neuromuscular junction. Such effects may promote relaxation and reduce nocturnal restlessness, thereby contributing to better sleep quality.
NMN Supplement
NMN Supplement is formulated as a longevity and cellular energy support product centered on nicotinamide mononucleotide (NMN). The formulation may help support NAD+ production, which is a foundational molecule involved in cellular energy metabolism and vitality. As NAD+ levels could decline with age, NMN intake may support healthy aging processes by helping maintain more youthful cellular energy output and metabolic efficiency.
After ingestion, NMN enters the NAD+ salvage pathway, where it gets converted into NAD+ through enzymatic steps that replenish cellular NAD stores. NAD+ is essential for mitochondrial energy production because it works as an electron carrier in metabolic reactions that generate ATP, the body’s primary energy currency. Such effects may promote more stable cellular energy production, which translates to improved physical vitality, endurance, and general metabolic performance.
Quercetin
Quercetin formulation intends to provide antioxidant support, lower inflammation levels, and promote a more resilient immune system. According to its official website, the formulation contains 1000mg of quercetin and 200mg of bromelain per two-capsule serving.
Quercetin may function as a potent antioxidant, supporting the body’s ability to neutralize the reactive oxygen species produced during infection response, environmental exposure, and normal metabolism. This matters because oxidative stress can influence immune cell performance and inflammatory signaling, especially during periods of high immune demand.
Quercetin could also influence inflammatory pathways such as NF-κB and cytokine signaling, helping the body maintain a healthier inflammatory tone rather than prolonged overactivation. Such effects may help support immunity and provide cardiovascular support.
Bromelain is a proteolytic enzyme complex typically derived from pineapple and is frequently paired with quercetin because it may improve quercetin uptake and utilization, helping more of the active flavonoid reach systemic circulation.
Citrus Bergamot Extract
Citrus Bergamot Extract formulation intends to support cardiovascular and metabolic health while also maintaining healthy cholesterol levels. The formulation is based on bergamot (Citrus bergamia) fruit extract, a citrus-derived source of bioactive flavonoids that is believed to support lipid balance and endothelial health.
As per the official website, the formulation provides 1000mg of a full-spectrum Citrus Bergamia Risso Fruit Extract Complex per serving (two capsules). The blend features multiple flavonoids and supportive compounds, including neoeriocitrin, naringin, neohesperidin, melitidine, bruteridin, pectin, and vitamin C.
Flavonoids such as neoeriocitrin, naringin, and neohesperidin provide antioxidant and anti-inflammatory actions that may support vascular function by reducing oxidative stress and supporting nitric oxide-related endothelial signaling. These compounds may support arterial flexibility and normal circulation mechanics, which may contribute to improved cardiovascular health markers.
Citrus Bergamot Extract formulation has melitidine and bruteridin compounds, which could influence lipid handling in the liver, including pathways involved in cholesterol synthesis, LDL particle processing, and triglyceride metabolism. Such mechanisms may support liver health, natural detoxification processes, and metabolism.
Lion’s Mane Mushroom
Lion’s Mane Mushroom is formulated as a cognitive and immune support formula. It may also help support focus, mood stability, and long-term brain maintenance by targeting biological pathways tied to nerve growth and synaptic function. Alongside neurological benefits, the formulation might also support immunity, gut health, and cardiovascular function.
Lion’s Mane mushroom could influence nerve growth factor (NGF) and brain-derived neurotrophic factor. NGF plays a central role in maintaining healthy nerve structure and supporting regeneration processes, while BDNF is strongly associated with memory formation, cognitive flexibility, and emotional regulation.
Cognitive support in this formulation is also connected to Lion’s Mane’s antioxidant and anti-inflammatory properties, which may influence brain function indirectly. Neuroinflammation and oxidative stress may disrupt neurotransmitter signaling and impair synaptic efficiency, contributing to mental fatigue and reduced focus.
Double Wood Supplements Advantage
Long-Running Brand Identity
Double Wood Supplements has operated continuously since 2013. The brand was founded by twin brothers Evan Wood and Reese Wood, as noted on its official site and supported by third-party business profiles. This places the company among earlier independent nutraceutical brands, ahead of many newer DTC entrants.
Since launch, the brand has kept a consistent identity. It focuses on straightforward nutrition and lifestyle support. Product names, labels, and packaging remain functional and descriptive. They emphasize ingredient purpose and intended use, not lifestyle themes or trend-driven visuals.
The brand prioritizes single-ingredient or narrowly focused formulations tied to compounds discussed in research. While the lineup has grown over time, the brand appears to have preserved the same presentation style and formulation philosophy.
A 12+ year track record may signal reliability and stability. Continued presence appears to reduce uncertainty in a category with frequent turnover. This consistency also supports a deeper focus in areas like cognitive support and aging-related formulas, which may be particularly appealing if you value long-term commitment.
Double Wood Supplements Limitations
Minimal Broad Clinical Validation
Double Wood Supplements does not publicly state that it runs or funds clinical trials on its finished products. The brand relies on third-party lab testing to confirm purity, potency, identity, and label accuracy. This testing supports quality control but does not measure real-world effectiveness or health outcomes.
The brand’s scientific support mainly comes from published studies on individual ingredients. These studies do not test Double Wood’s exact formulas or dosages, with variations in study length and conditions. Because of this, results may not fully reflect everyday use. Without product-specific trials, there is limited data on long-term results, consistency, or performance across different use cases.
Potential For Uncertainty And Testing Gaps
Independent analysis on Double Wood Supplements points to shortfalls that raise questions about composition accuracy rather than ingredient safety. Testing by NaturPro Scientific highlighted labeling uncertainties and potency concerns in products such as Magnesium Glycinate. When stated elemental content and tested values do not align clearly, it becomes harder to know what your body is actually receiving per serving, which can make it difficult to judge effectiveness, compare products, or track consistent intake over time.
Additional external analyses reported substantial underdosing in specific lots. In comparative testing cited in the industry, phosphatidylserine samples were measured at roughly 16%-45% of label claims. While these tests were not conducted directly by the brand, they reinforce broader concerns about raw material variability in similar nutrition categories.
Reports of saffron extract discrepancies further support this pattern. While exact figures such as 3 percent potency appear mainly in secondary discussions, they are consistent with wider critiques around poor standardization of botanical extracts, especially when sourcing and batch control are inconsistent. Uncertainty in potency testing and batch consistency can make real-world results less predictable and harder to validate.
Pros
- Emphasizes third-party lab testing with accessible certificates for each batch, indicating rigorous testing and quality control standards.
- Offers a 30-day refund policy on purchases.
- The brand’s offerings target multiple fitness needs, including metabolism, gut health, immunity, cognition, sleep, and heart health.
Cons
- A few users on independent review platforms experienced bloating, stomach upset, and dizziness after using the brand’s formulations.
- Some users noted delays in refund processing and shipment deliveries.
Double Wood Supplements Alternatives
Bulk Supplements
Bulk Supplements and Double Wood Supplements are both US-based brands with an extensive product catalog. However, the brands differ in their breadth of offerings, core positioning, transparency and quality framework, and formulation standards.
In terms of positioning, Bulk Supplements presents itself as a high-volume supplier built primarily around bulk-format single ingredients rather than curated complexes. The brand repeatedly emphasizes manufacturing control and breadth by stating it supplies more than 500 nutritional formulations to both consumers and manufacturers, with quantities ranging from grams to metric tons. Meanwhile, Double Wood Supplements positions itself as a single-ingredient brand as well, but with a more niche-compound focus. The brand’s positioning reflects a stacking-oriented, targeted-outcome model rather than a bulk commodity supply approach.
When it comes to product range, there are some differences between the brands. Bulk Supplements maintains an extensive product catalog to support diverse fitness needs and formats, including protein powders, creatine, vitamins and minerals, herbal formulations, muscle building, and hair/skin/nails. Some signature offerings from the brand include products like the Creatine Monohydrate (Micronized) Powder, Beta Alanine, L-Citrulline DL-Malate 2:1, Whey Protein Isolate Powder, and L-Glutamine. The brand also carries condition-specific and goal-oriented formulations such as N-Acetyl L-Cysteine (NAC) Capsules, NMN Powder, Resveratrol Capsules, Glycine Powder, Magnesium Glycinate Capsules, and Melatonin Softgels.
On the other hand, Double Wood’s online storefront is structured less as a bulk warehouse and more as a guided niche ingredient store. The brand organizes its products under shop-by-category health framing under categories like brain health, immune health, sleep, anxiety and stress, heart and vessels, healthy aging, metabolism, liver health, and men’s health. Some featured products in the brand’s catalog include the TUDCA, Tongkat Ali Complex, Magnesium L-threonate (Magtein), Berberine, Lion’s Mane mushroom, Magnesium Taurate, Quercetin, and Citrus Bergamot Extract. It also offers bundled options such as Sleep Bundle, Alpha GPC + Uridine Bundle, Mushroom Bundle, and Men’s Health Bundle.
Operational credibility is central to both brands, but the emphasis differs. Bulk Supplements leans on manufacturing assurance and facility-level claims, stating it operates out of Henderson, Nevada, and produces formulations in an NSF Certified and FDA-registered and inspected cGMP manufacturing facility. Meanwhile, Double Wood also pushes manufacturing and testing credibility heavily through claims like manufacturing in an FDA-registered facility and under GMP-certified standards, alongside third-party testing standards.
Logistics and operational convenience also lean in different directions. Bulk Supplements highlights fast worldwide shipping with fulfillment centers in Las Vegas and Nashville, and support availability seven days a week through live chat, phone, and email. Meanwhile, Double Wood focuses more on quality documentation, lab transparency, and brand ecosystem support than on warehouse-scale fulfillment messaging.
Toniiq
When comparing the brands, both Toniiq and Double Wood Supplements position themselves in the single-ingredient formulation space. However, the brands have some nuances in terms of their formulation standards, range of offerings, origins/quality framework, and accessibility.
Founded in 2013, Toniiq is a Michigan-based brand that emphasizes active compound concentration plus lot-by-lot verification as part of its formulation standards. Meanwhile, Double Wood Supplements consistently frames itself as a single-ingredient focused nutrition brand, with a storefront structure that supports building personalized formulation stacks rather than following one standardized protocol.
In terms of product range, there are some differences between the brands. Toniiq organizes its lineup around specific goals, such as longevity, performance, beauty, sleep, and immunity. Some signature offerings in the brand’s catalog include the NAD+, Synbiotics 200, NMN 1200, Apigenin 98%, Bacillus Coagulans 50, Berberine 1500, Ashwagandha+ 25%, and Artichoke 5%. As part of its formulation standards, Toniiq focuses on more concentrated actives (active percentages like withanolides, saponins, beta-glucans, polysaccharides) than standard actives.
Meanwhile, Double Wood Supplements organizes its offerings by benefit-based categories like brain health, anxiety and stress, immune health, sleep, heart and vessels, healthy aging, and metabolism. Some signature offerings in the brand’s catalog include options such as Magnesium L-threonate (Magtein), Berberine, Lion’s Mane Supplement, Magnesium Taurate, Quercetin, Citrus Bergamot Extract, Valerian Root Drops, Ashwagandha, and Dihydroberberine.
How Did We Evaluate?
Real User Feedback
To evaluate Double Wood Supplements, we reviewed the verified user experiences shared on Trustpilot between 2025 and 2026, where the brand currently maintains a 3.7 out of 5 score from 160+ reviews.
Many users specifically appreciated fast replacements, same-day responses, and representatives going above and beyond, especially when an order did not arrive or when a subscription mistake required correction. Some users also highlighted quick shipping, smooth ordering, and satisfactory product outcomes for common fitness goals. For instance, users experienced sleep support and cramp relief from offerings like Magnesium Glycinate and L-theanine.
However, some users shared concerns regarding subscription and billing, service delays, quality/control concerns, and trust skepticism around dosing/ingredient choices. A repeated pattern appears where users claimed they were charged for products they didn’t purchase, were unintentionally enrolled in recurring shipments, or had difficulty stopping auto-shipments.
Based on the available feedback, it appears that many users appreciated customer service responsiveness and product value. However, critical feedback revolved around subscription handling, communication reliability, and order fulfillment consistency.
Brand Credibility
In evaluating Double Wood Supplements’ reputation, we analyzed the brand’s background, operational history, and standing across independent review forums.
On the Better Business Bureau, the brand is BBB Accredited and holds an A+ rating, with the brand’s profile indicating 11+ years in business operations. The reviews and complaints shared on BBB indicate a mixed response to the brand’s offerings and services.
Many users described strong value and ease of buying, including affordability versus other brands, a smooth website experience, and successful purchases across both auto ship and one-time orders. Some reviews on the BBB profile also emphasized delivery reliability and good customer service. However, negative reviews centered on fulfillment and support breakdowns, such as an urgent order that appeared stuck with the courier and lacked clear updates, combined with a refund refusal until the package was returned.
Meanwhile, TenereTeam provided the brand with a 4.5 out of 5 score based on 1420+ ratings on that platform. However, the dataset on TenereTeam does not account for complaint themes or user satisfaction that could validate operational reliability.
Our evaluation indicates that Double Wood Supplements has stronger credibility markers than many other brands on BBB due to accreditation and an A+ rating. However, the negative signals highlight potential reputation risk tied to shipping uncertainty, refund timing conditions when packages are missing or delayed, and product tolerance variability.
Frequently Asked Questions
Yes. While the brand mainly focuses on single-ingredient formulations, it also offers some multi-ingredient blends, such as Vitamin D3 + K2 Liquid Drops and Methylated Multivitamin. However, multi-ingredient options are currently limited in the brand’s catalog.
Not fully. The brand emphasizes transparency through third-party testing and Certificates of Analysis (COAs). However, it does not prominently disclose detailed sourcing information such as raw material supplier names, country of origin, or full supply chain traceability on its site.
No. The brand describes its products as primarily sold online, including through its own website and online marketplaces like Amazon. It does not state that its products are stocked in physical retail stores or available for in-store pickup. The brand also does not list partnerships with major brick-and-mortar chains, such as GNC, Vitamin Shoppe, or Walmart stores.
Conclusion
Double Wood Supplements provides a diverse range of products to support various fitness goals and condition-specific needs, such as low motivation, fatigue, or weak immunity. The brand positions itself as a no-frills supplement shop focused on ingredient simplicity and lab-testing positioning rather than lifestyle branding.
However, there are some considerations to keep in mind before opting for the brand’s services. Many product listings on the website indicate frequent sold-out status, which may disrupt routine planning and make the brand less dependable for ongoing supplementation needs. Strong actives in the brand’s offerings, such as Tongkat Ali and quercetin, may trigger mild digestive upset or sensitivity-related reactions.
It is also important to note that personal experiences and outcomes with the brand’s offerings may vary based on specific factors. These include baseline diet, dosage precision and frequency of use, tolerance for strong actives, and any pre-existing health issues.
- About the Author
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Alisha Matthew has been a practicing nutritionist since 2016. She holds a master’s degree in nutrition from the University of IOWA. She is a staunch believer in improving the human health index by educating people about nutrition and the importance of nutrition in leading a healthy and happy life. Her long-term goal is to keep educating people on general health and keep herself updated with the latest trends in the field of health.