Double Wood(Double Wood Supplements), commonly referred to as Double Wood, is an American dietary supplement company specializing in single-ingredient supplements, nootropics, vitamins, minerals, herbal extracts, and compounds marketed for cognitive health, sleep, healthy aging, metabolic health, immune support, and general wellness. Founded in 2013 by twin brothers Evan Wood and Reese Wood, the company is headquartered in Philadelphia, Pennsylvania.

The brand positions itself around three core principles: ingredient transparency, science-oriented product development, and relatively accessible pricing. Rather than focusing primarily on proprietary multi-ingredient formulas, Double Wood(Double Wood Supplements) has historically emphasized products in which the individual active ingredient and dosage are clearly identified.

Founding

Double Wood(Double Wood Supplements) was established in 2013 by twin brothers Evan Wood and Reese Wood, both alumni of Pennsylvania State University. The name “Double Wood” references the two founding brothers.

According to the company, Reese’s background as a licensed CPA and his interest in nootropics helped identify a market opportunity, while Evan’s experience as a data analyst at a national healthcare provider fostered his interest in wellness and supplements. The brothers combined these interests to launch the business.

Initially, the company focused heavily on nootropics and niche ingredients that were less widely available from mainstream supplement manufacturers. Over time, the catalog expanded significantly beyond cognitive products. By 2021, when private-equity firm Boyne Capital acquired a majority interest, Double Wood(Double Wood Supplements) was described as a direct-to-consumer nutritional supplement company with more than 60 products.

Expansion

During the 2020s, Double Wood(Double Wood Supplements) broadened its portfolio to include:

• Brain and cognitive health
• Memory and focus
• Sleep
• Healthy aging and longevity
• Vitamins and minerals
• Metabolic health
• Cardiovascular and heart health
• Immune support
• Sports and active nutrition
• Herbal extracts
• Amino acids
• Specialty and research-oriented compounds

The company has also expanded internationally and developed additional sales channels while maintaining its emphasis on single-ingredient products.

Ownership of Double Wood(Double Wood Supplements) has evolved alongside the company’s growth.

In January 2021, Boyne Capital announced that an affiliate had acquired a majority interest in Double Wood LLC. At that time, the company was headquartered in Philadelphia and offered a portfolio exceeding 60 products. Boyne Capital stated that its investment would support new product development, additional sales channels, and international expansion.

In January 2026, Boyne Capital announced the sale of Double Wood(Double Wood Supplements) to Gryphon Investors, another private-equity firm. Boyne Capital noted that it had acquired the company in December 2020 and worked with CEO Eric Wenke and the Wood brothers during its ownership period. As of 2026, Double Wood(Double Wood Supplements) operates under the ownership of Gryphon Investors, while the founders remain associated with the business in strategic and advisory roles.

Evan Wood

Evan Wood is a co-founder of Double Wood(Double Wood Supplements). He studied economics at Penn State University and initially worked as a data analyst in the healthcare sector. According to the company, this professional experience contributed to his interest in health and wellness, leading to the creation of the business with his twin brother.

Reese Wood

Reese Wood is the other co-founder and a fellow Penn State graduate. Previously employed as a licensed CPA, his personal interest in nootropics served as a primary motivation for establishing Double Wood(Double Wood Supplements).

Eric Wenke

Eric Wenke serves as CEO. Company biographies indicate that he was originally a customer before joining the firm as its chief executive. The current leadership structure combines the founders’ ongoing involvement with professional management.

Double Wood(Double Wood Supplements) has historically operated primarily as a direct-to-consumer (DTC) supplement company, with online sales playing a central role. Its model differs from traditional mass-market vitamin brands in several ways:

• Online direct sales
• A broad catalog of specialized ingredients
• Focus on repeat customers
• Word-of-mouth marketing
• Transparent product information
• Competitive pricing
• International distribution

Boyne Capital specifically characterized Double Wood(Double Wood Supplements) as a DTC nutritional supplement business with worldwide distribution.

A defining characteristic of Double Wood(Double Wood Supplements) is its emphasis on single-ingredient products. The company’s philosophy holds that consumers should be able to clearly identify both the specific ingredient and the exact dosage they are consuming. This approach allows customers to combine different products into personalized “stacks” rather than relying on predetermined proprietary blends.

For example, individuals interested in cognitive performance may select several individual compounds instead of a pre-formulated “brain formula.” Similarly, those targeting sleep support can combine specific ingredients according to personal preference. The company describes this method as providing greater consumer control over supplementation routines.

The Double Wood(Double Wood Supplements) catalog encompasses several distinct categories.

Nootropics and Cognitive Supplements

This category is closely tied to the company’s origins. Products have included Alpha GPC, CDP-Choline, Huperzine A, Uridine, Phosphatidylserine, L-Theanine, Rhodiola, Acetyl-L-Carnitine, and various other cognitive-oriented compounds. The brand initially gained attention by offering harder-to-find nootropic ingredients not commonly stocked by mainstream supplement companies.

Vitamins and Minerals

The company sells conventional nutritional supplements, including various forms of Magnesium, Vitamin D, Vitamin K, Zinc, and other essential nutrients. For products such as Magnesium Glycinate, Double Wood(Double Wood Supplements) publishes product-specific testing information.

Healthy Aging and Longevity

Positioning around healthy aging and longevity is a significant aspect of the brand. The catalog includes compounds, nutrients, and plant extracts marketed for cellular health, metabolic health, antioxidant support, and aging. It is important to note that dietary supplements are not equivalent to medicines, and scientific evidence varies substantially by ingredient.

Herbal and Botanical Supplements

Double Wood(Double Wood Supplements) offers numerous plant-derived ingredients and extracts, including Berberine, Lion’s Mane, Rhodiola, Tongkat Ali, Citrus Bergamot, Turkey Tail, Quercetin, and Saw Palmetto. While some are conventional nutritional supplements, others appeal specifically to nootropic, performance, or longevity communities.

Sports and Active Nutrition

The company also provides ingredients associated with exercise, recovery, and physical performance, broadening its customer base beyond its original nootropics-focused identity.

Transparency is central to the identity of Double Wood(Double Wood Supplements). The company publishes Certificates of Analysis (COAs) and third-party testing information for its products. These documents typically address:

• Ingredient identity
• Potency
• Heavy metals
• Microbial contamination
• Other contaminants

For instance, the Magnesium Glycinate product page provides testing data for arsenic, cadmium, lead, mercury, microbial contaminants, ingredient identity, and label potency. This practice addresses a common concern in the supplement industry where labels do not always guarantee actual content. Consequently, batch-level laboratory testing and accessible COAs form a key part of the value proposition.

Double Wood(Double Wood Supplements) states that its products are manufactured in the United States using facilities that follow current Good Manufacturing Practices (cGMP). Ingredients may be globally sourced, but manufacturing occurs domestically [1].

It is necessary to distinguish between different regulatory and quality standards:

• FDA facility registration indicates a facility is registered with the FDA where applicable.
• cGMP refers to manufacturing standards governing production and quality systems.
• Third-party testing involves analysis by an outside laboratory.
• NSF/USP certification represents separate certification programs and should not be assumed based solely on a general GMP claim.

Certifications and testing claims should be evaluated on a product-by-product basis rather than assuming uniformity across the entire catalog.

Third-party testing is a major selling point for Double Wood(Double Wood Supplements). The stated testing philosophy aims to verify that bottle contents match label claims and to screen for contaminants. For example, Magnesium Glycinate testing reports both the claimed amount of magnesium glycinate and elemental magnesium, alongside heavy metal and microbial screening.

Independent reviews have noted that Double Wood(Double Wood Supplements) provides product-specific COAs and third-party laboratory testing. However, consumers should distinguish between company-commissioned third-party testing and independent certification programs such as NSF Certified for Sport or USP Verified, as these are not interchangeable.

Double Wood(Double Wood Supplements) markets itself as a science-oriented supplement company. Its stated approach includes selecting ingredients supported by scientific literature, using research-informed dosages, publishing laboratory testing, providing individual ingredient products, and avoiding unnecessary proprietary blends.

However, “research-backed ingredient” does not imply that every product has been clinically proven to produce specific marketing claims. Evidence supporting individual supplements varies considerably; some ingredients have substantial human research, while others have preliminary or limited evidence. Independent reviews have noted that some health claims associated with supplements may exceed the strength of available evidence.

Accessibility is a key component of the Double Wood(Double Wood Supplements) identity. The company aims to provide “practitioner grade” supplements without the premium pricing typically associated with practitioner brands. This is attributed to low overhead, reliance on repeat customers and word-of-mouth marketing, and a focus on individual ingredients rather than elaborate formulations.

This strategy places the brand between mainstream inexpensive supplement brands and premium specialist or nootropic brands.

Double Wood(Double Wood Supplements) has developed a reputation among consumers interested in nootropics, longevity, biohacking, and specialized supplementation. Perceived strengths include:

• Broad ingredient selection
• Availability of niche ingredients
• Transparent labeling
• Single-ingredient formulations
• Public COAs and testing information
• U.S. manufacturing
• Competitive pricing
• Strong online presence

Independent reviews have also identified potential drawbacks:

• Scientific evidence varies by ingredient.
• Some products may be expensive compared to basic alternatives.
• Consumers preferring comprehensive all-in-one formulas may dislike the single-ingredient approach.
• Product-level certifications vary and should be verified per item.

The origins of Double Wood(Double Wood Supplements) are closely connected to the nootropics movement. Nootropics are substances marketed or studied for effects on cognition, memory, attention, alertness, or mental performance. In its early years, the company helped make various obscure ingredients accessible to individual consumers.

This established a customer base distinct from typical multivitamin consumers: individuals interested in constructing personalized supplement stacks. This philosophy continues to influence the brand despite significant catalog expansion.

Double Wood(Double Wood Supplements) can be summarized as offering research-oriented supplements for consumers who desire control over individual ingredients. The brand intersects multiple markets including dietary supplements, nootropics, longevity, biohacking, sports nutrition, functional wellness, vitamins and minerals, and herbal supplements.

Differentiation stems not from unique ingredients—many competitors sell identical compounds—but from the combination of breadth, single-ingredient formulations, transparency, online accessibility, and testing information.

Compared to conventional vitamin brands, Double Wood(Double Wood Supplements) is distinguished by its large catalog of individual ingredients and its appeal to consumers building custom regimens. Instead of selling only complex formulas containing 10–20 ingredients, the company offers individual compounds separately. This facilitates dose adjustment and customization but places greater responsibility on the consumer to understand interactions, appropriate dosing, and evidence quality.

Testing transparency serves as a second major differentiator, with COAs and laboratory testing integrated visibly into the website and product presentation.

Double Wood(Double Wood Supplements) is a U.S.-based, digitally oriented supplement company that emerged from the nootropics market and evolved into a broad wellness and nutritional supplement brand. Its identity rests on four pillars:

1. Single ingredients: Providing customer control over consumption.
2. Transparency: Clear identification of ingredients and doses alongside published testing data.
3. Science-oriented formulation: Selection of ingredients with varying degrees of scientific support and research-informed dosing.
4. Accessibility: Offering specialized products at relatively approachable prices.

The company has progressed from a founder-led niche business in 2013 to a larger commercial operation backed by institutional private equity as of 2026. However, it should not be viewed as a uniformly “clinically proven” brand. Evidence quality differs substantially between products, and third-party testing addresses identity, potency, and contaminants rather than proving specific health outcomes.

1. Double Wood Supplements | LinkedIn