Informed Choice Certification

Supplement certifications are one of the few quality signals available in a market where the FDA doesn’t approve products before they hit shelves. But not all certifications test for the same things, and the differences matter more than most consumers realize. Informed Choice occupies a specific niche: it’s a banned substance testing and quality assurance program designed primarily to reduce the risk of inadvertent doping through contaminated supplements.

For athletes subject to anti-doping rules, that distinction could save a career. Even outside competitive sports, Informed Choice tells you something useful about a product’s manufacturing quality and whether undeclared compounds are lurking in the formulation. This article covers what the program actually tests, how it works, where it fits relative to NSF and USP, and what it doesn’t do.

This article is part of the Sighed Effects certification series, which also includes guides to NSF Certified for Sport, USP Verified, BSCG, and our certification comparison guide.

Isometric view of a supplement bottle labeled with Informed Choice certification on a clean white background. — The Informed Choice mark on a supplement label indicates the product has been tested for banned substances through LGC’s certification program.

Who runs Informed Choice and why it exists

Informed Choice is operated by LGC, a UK-based science and measurement organization with roots going back to 1842, when it was established as the Laboratory of the Board of Excise to regulate taxation and test the purity of consumables.¹ LGC was privatized in 1996 and has since expanded into a global life sciences company, but the relevant division here is its sports anti-doping laboratory, formerly known as HFL Sport Science. LGC has been testing supplements for banned substances since 2002 and has processed over 230,000 samples.²

The Informed Choice program launched in 2007.³ The context matters: by the mid-2000s, supplement contamination had become a serious problem in competitive sports. A landmark 2001-2002 study coordinated by the International Olympic Committee analyzed 634 supplements from 13 countries and found that roughly 15% contained undeclared anabolic androgenic steroids or prohormones.⁴ Athletes were testing positive for substances they had no intention of taking, and the contamination was often traced to manufacturing failures rather than deliberate spiking.

More recent data suggests the problem hasn’t disappeared. A 2017 review found contamination rates of WADA-prohibited substances ranging from 12% to 58% across 23 studies, depending on product category and region.⁵ A 2025 survey of the Australian online supplement market found that 35% of products purchased contained at least one WADA-prohibited substance.⁶ LGC’s own analysis of tens of thousands of samples puts the contamination risk at about 1 in 10 for untested products, compared to better than 1 in 5,000 for products that undergo regular banned substance testing.⁷

Informed Choice was built to close that gap.

What Informed Choice tests for

Informed Choice screens for more than 285 substances prohibited in sport, using analytical methods accredited to ISO/IEC 17025.⁸ The screening panel covers anabolic agents like steroids, prohormones, and SARMs; stimulants including DMAA, ephedrine, and amphetamine analogs; beta-2 agonists such as clenbuterol; diuretics and masking agents; and hormone modulators. It’s derived from the World Anti-Doping Agency’s Prohibited List and updated as new compounds emerge in the supplement market.

The testing uses gas chromatography, liquid chromatography, and mass spectrometric detection, with detection limits in the low parts-per-billion range for most compounds: roughly 10 parts per billion for steroids and 100 parts per billion for stimulants.⁹ These are the same analytical methods used in forensic anti-doping analysis, which matters because the contaminants that cause inadvertent doping violations are often present at trace levels.

The product categories most prone to contamination are the ones you’d expect: pre-workouts, fat burners, testosterone-related products, and anything marketed for muscle building or sexual performance. These are the supplements where manufacturers are most likely to add undeclared active compounds to make products “work,” and where cross-contamination from shared manufacturing lines poses the highest risk. Weight loss supplements are particularly bad. One systematic review found sibutramine (a banned serotonin and norepinephrine reuptake inhibitor withdrawn from markets for cardiovascular risk) to be the most commonly detected undeclared substance, appearing in roughly 28% of contaminated samples analyzed.¹⁰

Laboratory technician testing supplements using chromatography equipment. — LGC uses ISO 17025-accredited analytical methods, including HPLC and mass spectrometry, to screen supplements for prohibited substances.

How the certification process works

Certification starts with a pre-certification assessment. The brand submits detailed documentation including the product’s full formulation, raw material sources, and manufacturing information. LGC’s team reviews the raw material inventory for any ingredients that are themselves banned or that carry a high cross-contamination risk. This step matters because Good Manufacturing Practice (GMP) compliance alone doesn’t address banned substance risks. LGC has found evidence of contamination in GMP-compliant facilities because GMP regulations permit the handling of steroids, stimulants, SARMs, and other prohibited substances in the same facility where supplements are produced.¹¹ Informed Choice requires manufacturers to go beyond GMP minimums.

Next comes pre-registration product testing. LGC tests three or more samples from different production runs to establish a baseline testing history. Only after both the manufacturing quality review and the product testing come back clean can the product enter the program and carry the Informed Choice mark.

After certification, the ongoing monitoring is where Informed Choice differs from a one-time test. The program operates as a retail monitoring system: LGC’s laboratory team purchases the certified product from retail outlets (both physical stores and websites) and tests it. At least twelve batches per year are tested at random through this blind sampling process.¹² This is a meaningful distinction from programs that only test samples submitted by the manufacturer, because it catches problems that could arise from changes in suppliers, production line issues, or other post-certification drift.

Certified products are listed in a public searchable database where consumers, coaches, and compliance officers can verify a product’s certification status and see which specific batches have been tested.

Diagram illustrating the step-by-step Informed Choice supplement certification process. — The Informed Choice certification process, from pre-certification review through ongoing retail monitoring.

Informed Choice vs. Informed Sport

This distinction gets confused constantly, and most online comparisons get it wrong. Here’s the actual difference.

**Informed Choice** is a retail monitoring program. Products are certified after passing the pre-certification review, and then monitored through monthly blind sampling from retail. At least twelve batches per year are randomly tested, but not every batch is guaranteed to have been tested before it reaches you.

**Informed Sport**, launched in 2008 in conjunction with UK Anti-Doping (UKAD), tests every single batch of a product before it goes to market.¹³ No batch ships without clearance. Post-certification, Informed Sport also includes blind retail testing as an additional layer.

Both programs use identical testing methods and the same ISO 17025-accredited laboratory, screening for the same 285+ substances. The difference is frequency and timing. Informed Sport provides pre-market assurance for every batch. Informed Choice provides ongoing surveillance that catches most problems but doesn’t guarantee that the specific batch in your hand was tested before sale.

For anyone subject to zero-tolerance anti-doping policies — Olympic and professional athletes, military personnel, NCAA competitors — Informed Sport is the appropriate standard. For general consumers and recreational athletes who want a meaningful quality signal without requiring every-batch pre-market testing, Informed Choice provides solid risk reduction.

Athletes reviewing supplement labels with Informed Choice certification for banned substance screening. — For athletes subject to anti-doping testing, both Informed Choice and Informed Sport reduce contamination risk, but Informed Sport’s every-batch testing offers stronger protection.

How Informed Choice compares to NSF and USP

Each of the major supplement certifications asks a different primary question about a product, and the overlaps are smaller than most comparison articles suggest.

**Informed Choice** asks: does this product contain banned substances? Its core competency is anti-doping screening. The manufacturing quality review ensures the production environment minimizes contamination risk, but the central value proposition is the ongoing banned substance testing. It was recognized by the UFC as an accredited certification agency in 2019 and is accepted as a quality certification by Amazon in the US.¹⁴

**NSF Certified for Sport** asks a similar question but from within a broader quality framework. NSF’s general certification covers GMP compliance, label accuracy, and contaminant screening. The Certified for Sport add-on specifically screens for banned substances and is widely adopted by North American professional sports leagues (NFL, MLB, NHL) and NCAA programs. NSF’s facility audit process is generally considered more intensive than Informed Choice’s manufacturing questionnaire, and its North American institutional relationships are deeper. Where Informed Choice has stronger footing is internationally, particularly in Europe, Asia, and with organizations like the UFC.

**USP Verified** asks a different question entirely: does this product contain what the label says, at the potencies claimed, and will it dissolve properly? USP focuses on ingredient identity, potency, purity, and dissolution performance. It applies pharmaceutical-grade standards to supplement manufacturing. What USP does not do is screen for banned substances. A USP Verified product could contain trace anabolic agents from manufacturing cross-contamination and still pass USP testing, because that’s not what USP is looking for. For daily wellness supplements where your concern is “does this actually contain 500mg of vitamin C,” USP is the strongest mark. For sports supplements where your concern is “will this trigger a positive drug test,” USP isn’t the right filter.

For a detailed breakdown of how all major certification programs compare, see our certification comparison guide.

Visual comparison of Informed Choice, NSF, and USP certification features. — Informed Choice, NSF Certified for Sport, and USP Verified each focus on different aspects of supplement quality. The right certification depends on what you’re trying to verify.

Who benefits most from the Informed Choice mark

The program was built for athletes, and that’s still where it matters most. Professional and Olympic athletes operate under WADA’s strict liability standard: you’re responsible for whatever shows up in your sample, regardless of intent. An inadvertent positive test from a contaminated supplement carries the same initial penalty as deliberate doping. Informed Choice (and its sister program Informed Sport) exist to reduce that risk to something approaching zero.

Collegiate athletes face similar pressures. NCAA anti-doping rules are strict, and many university compliance departments maintain approved supplement lists limited to products carrying either Informed Choice or NSF Certified for Sport marks. Military personnel are another major user group, particularly in the US and UK, where service branches have implemented supplement policies in response to repeated incidents involving hidden stimulants and banned compounds in commercially available products.

For consumers who aren’t subject to drug testing, Informed Choice still provides useful information. A product that has passed through the program’s manufacturing review and ongoing blind testing is, statistically, far less likely to contain undeclared ingredients than one that hasn’t been independently tested — the contamination rate gap described earlier (1 in 5,000 versus 1 in 10) is substantial. Whether the certification is worth paying attention to depends on the product category. For a basic multivitamin or standalone mineral supplement, the contamination risk is low to begin with, and a USP or NSF mark may be more relevant. For pre-workouts, fat burners, testosterone-related products, or protein powders from brands you’re not familiar with, an Informed Choice or Informed Sport mark carries real weight.

Side-by-side comparison of supplement label claims versus tested ingredient contents. — Informed Choice testing confirms the absence of undeclared banned substances; the pre-certification review also checks that formulations and labels are consistent.

What Informed Choice does not do

This matters as much as what it does, because misconceptions about certification scope lead to misplaced confidence.

The most common misunderstanding is treating the mark as an endorsement of efficacy. Informed Choice does not evaluate whether a supplement works. It doesn’t assess clinical outcomes, optimal dosing, or whether a formulation makes biological sense. A product could contain a clinically useless dose of an ingredient, pass Informed Choice testing, and carry the mark. The certification confirms what’s in the bottle and what isn’t. It says nothing about whether those ingredients do what you’re hoping they’ll do.

It’s also worth understanding that Informed Choice is a commercial certification, not a government approval. LGC is a private company. It has deep roots in government science — it still hosts the UK’s National Measurement Laboratory and the Government Chemist function — but the Informed Choice program operates as an independent certification service. Since the FDA doesn’t pre-approve supplements at all, independent commercial programs that fill that gap are a net positive. The mark represents LGC’s quality standards, not a regulatory stamp.

On the other side of the confusion: an uncertified product is not necessarily contaminated. Many reputable manufacturers skip third-party certification because the cost and logistics don’t fit their scale or product line. Certification provides independent verification. Its absence means you have less information, not that you have a bad product. And even within certified products, no testing program can guarantee complete absence of all prohibited substances. LGC screens for 285+ known compounds, but new substances emerge regularly. The program provides meaningful risk reduction, not risk elimination.

Common myths vs facts about Informed Choice certification — Common misconceptions about Informed Choice: the program is open to all supplements (not just athletes’), does not guarantee efficacy, and requires ongoing testing rather than a one-time pass.

Using certification as a filter, not a finish line

Informed Choice does a specific job well: it reduces the risk that a supplement contains undeclared banned substances. For anyone subject to anti-doping testing, that job is non-negotiable. For general consumers, it provides one layer of quality assurance in an industry where independent verification is the exception rather than the rule.

The practical approach is to use certifications as filters appropriate to your situation. If you’re subject to drug testing, look for Informed Sport (every batch tested) or Informed Choice (regular blind monitoring). If your primary concern is label accuracy and ingredient quality for daily supplements, USP Verified or NSF’s general certification may be more relevant. Products carrying marks from more than one program have been independently verified on multiple dimensions — banned substances, label accuracy, manufacturing quality — which is as close to comprehensive assurance as the supplement market currently offers.

No certification replaces doing your own due diligence on whether a supplement is worth taking in the first place. The best-tested product in the world doesn’t help you if the ingredient has no evidence behind it. Start with the evidence for the ingredient, then use certification to filter which specific product to buy. That order matters.

One Informed Choice–certified supplement standing out among generic bottles. — Certification helps distinguish independently tested products from unverified ones, but it’s one signal among several that informed consumers should consider.

Informed Choice Certification: What It Is, Who It Protects, and Why It Matters