Performance Supplements Exposes Sports Nutrition’s Hidden Ingredient Problem

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How the GROW Line Makes the Case Against Proprietary Blends in Sports Nutrition

Tempe, United States – May 8, 2026 / Performance Supplements /

Performance Supplements has formally expanded the public profile of its GROW product line – comprising Krea-Grow, Pre-Grow, Intra-Grow, Vaso-Grow, and VITA-GROW – as part of a direct industry challenge to the widespread use of proprietary blends in sports nutrition. The announcement positions the company, which has operated on a full-disclosure formulation model since 2016, as an active voice against undisclosed ingredient dosing practices that the brand argues have long undermined consumer trust across the sector.

An Industry Problem the Brand Refuses to Ignore

Proprietary blends – formulations in which manufacturers list ingredients without disclosing individual dosages – remain common across the sports nutrition market. Critics of the practice argue that consumers are left unable to verify whether any active ingredient meets a clinically supported threshold. Performance Supplements contends that this opacity is not a minor labeling technicality but a structural problem that affects athlete safety, product efficacy, and purchasing decisions.

The company points to research indicating that many commercially available pre-workout and recovery formulas contain active compounds at dosages well below those studied in peer-reviewed literature, while label designs obscure this fact through grouped ingredient totals. Sports nutrition transparency, according to Performance Supplements, is not a marketing position but a formulation standard that should be applied at the point of manufacture.

The GROW Line as a Documented Standard

Each of the five formulas in the GROW line was developed to reflect clinically supported dosage ranges with full ingredient disclosure on every label. Krea-Grow delivers creatine at documented performance-relevant levels. Pre-Grow provides pre-workout compounds at dosages aligned with published exercise science. Intra-Grow addresses intra-workout hydration and endurance support. Vaso-Grow targets blood flow and muscle volumization through verified ingredient quantities. VITA-GROW covers micronutrient coverage for daily athletic function.

All five products are proprietary blend free supplements, meaning every ingredient and its exact quantity appears on the label with no groupings or hidden totals. The company describes this as the only honest baseline for a supplement brand making performance claims.

“Since we launched in 2016, we have built every formula around the principle that an athlete deserves to know exactly what they are putting in their body and at what dose – not a range, not a blend total, but the actual number,” said Marcus Grant, Director of Product Development at Performance Supplements. “The GROW line exists as proof that clinically dosed supplements are achievable without hiding behind proprietary formulas. There is no technical barrier to transparency. It is a choice, and we made that choice from day one.”

Formulation Philosophy Backed by Published Science

Performance Supplements states that dosage decisions across the GROW line are informed by peer-reviewed research rather than cost optimization or ingredient minimums. The company holds that the standard for any active compound should be the dose at which measurable outcomes were observed in controlled studies – not the lowest quantity that satisfies a label requirement.

This approach applies to both primary actives and supporting compounds within each formula. Ingredient sourcing is described as prioritizing purity and standardized potency, with no undisclosed fillers or proprietary ingredient systems from third-party suppliers that would reintroduce opacity at the ingredient level.

The brand notes that full label transparency functions as a verification tool for athletes working with coaches, registered dietitians, or sports medicine professionals who need accurate intake data. When dosages are hidden, that professional oversight becomes unreliable.

A Position Maintained Across Nearly a Decade

Performance Supplements has maintained its no-proprietary-blend policy across nearly nine years of operations, a period during which the broader market has seen recurring consumer backlash against underdosed and mislabeled products. The company’s sustained stance distinguishes it from brands that have adopted transparency language as a marketing response to external pressure rather than a founding operational standard.

The full GROW product line is available through the company’s collections page, where complete supplement facts panels are published alongside each product listing, allowing consumers to review formulation details prior to purchase.

About Performance Supplements

Performance Supplements is a sports nutrition company founded in 2016 on the principle of full label transparency and clinically supported ingredient dosing. The company develops and distributes the GROW line – Krea-Grow, Pre-Grow, Intra-Grow, Vaso-Grow, and VITA-GROW – as proprietary blend free supplements formulated without hidden dosages or undisclosed ingredient quantities.

Learn more at Performance Supplements