Isopure (Glanbia Performance Nutrition)
7.3
Naked Compound Score / 10
Evidence (ingredient)9.5
Ingredient form8.0
Purity & manufacturing6.5
Value for money3.5
Label honesty7.0
Buy on Amazon.in → affiliate link · see disclosures below
5g
Per scoop — correct maintenance dose
Glanbia
Part of Glanbia Performance Nutrition — US manufacturing
₹26.7
Per 5g dose at ₹1,599 for 300g (import pricing)
Import
US manufactured, imported — grey market risk if source unknown

The bottom line

Naked Compound verdict · 7.3 / 10

Isopure Creatine is a clean product from a credible import brand. The problem is simple: ₹26.7/dose buys you nothing that AS-IT-IS at ₹9.2/dose does not, except the Isopure logo.

Isopure is the premium protein brand from Glanbia Performance Nutrition (GPN), the same company behind Optimum Nutrition. Their zero-carb protein isolate has a long track record in the US market. Isopure Creatine is a more recent addition to the India product range — a single-ingredient creatine monohydrate at the correct 5g dose.

There is nothing wrong with this product. The formulation is clean, the dose is correct, and Glanbia's manufacturing infrastructure carries real quality assurance depth. Glanbia operates NSF-audited facilities for some of their products — and their manufacturing standards are among the highest in commercial sports nutrition.

The problem is value. Isopure Creatine is not certified for this specific SKU by NSF Certified for Sport or Informed Sport. It is an import product with no India-specific batch documentation in the public domain. Against AS-IT-IS at ₹9.2/dose (NABL COA, publicly posted) or Dymatize Creatine at ₹25.0/dose (NSF Certified for Sport), Isopure occupies an uncomfortable middle ground — more expensive than the domestic documentation option, lacking the certification of the imported certification option.

Isopure and Glanbia: brand context

Isopure was founded in 1995 as Nature's Best, positioning itself around zero-carb, high-protein formulations. Glanbia Performance Nutrition acquired the brand and now operates it alongside Optimum Nutrition, BSN, and Thinkthin. Manufacturing for the US market is conducted across GPN-operated facilities, including facilities with third-party quality accreditations.

The key distinction for Indian buyers is that Isopure products sold in India are imported, not manufactured here. The supply chain — from US production through customs, import warehousing, and distributor logistics to the retail shelf — introduces transit variables (temperature, humidity, duration) that are not reflected in a US-market COA. India's import supplement market has documented instances of degraded product arriving from extended or poorly managed supply chains.

Isopure creatine vs Isopure protein: different documentation

Isopure's protein products have more extensive documentation histories than their creatine SKU. If you are already using Isopure Zero Carb protein and have a good experience with it, the manufacturing quality inference holds — but the creatine product has no specific third-party certification we could verify at time of review. Check the Isopure India website for current certification status before purchasing.

Label analysis

Isopure Creatine (300g) contains: creatine monohydrate. Single ingredient, unflavoured. The 5g scoop is included and calibrated correctly. There are no artificial sweeteners, fillers, or flowing agents in the standard unflavoured format. The label is clean by any standard.

Isopure does not state the creatine monohydrate raw material source on the label. No Creapure marking, no supply chain country of origin beyond "Product of USA." No batch-level certification mark. This is consistent with how most US supplement brands label their creatine — full supply chain transparency is the exception, not the rule.

Dosing protocol

Isopure recommends one scoop (5g) daily. This is the correct maintenance dose from the clinical literature. One observation on dissolution: Isopure Creatine is not specifically marketed as micronized, and field experience suggests the standard particle size — stir more thoroughly or mix in warm water if you notice settling in cold beverages.

Value: the import tax problem

At ₹1,599 for 300g, Isopure Creatine lands at ₹26.7 per dose. This is the highest price point we have reviewed for creatine monohydrate — equal to or higher than Dymatize (₹25/dose, NSF certified) and significantly above ON Micronized Creatine (₹27.5/dose, Labdoor A+).

ProductPer doseCertification
AS-IT-IS Creatine₹9.2NABL COA
MuscleBlaze CreaPRO₹15.0Creapure
Dymatize Creatine Micronized₹25.0NSF Certified for Sport
Isopure Creatine₹26.7None (import brand quality)
ON Micronized Creatine₹27.5Labdoor A+

This table makes the value case difficult. Isopure is priced at the top of the import tier without the certification credentials of Dymatize (NSF) or ON (Labdoor A+). The brand equity of Isopure in the Indian market is real — but brand equity does not substitute for independent purity documentation when the product is a commodity ingredient where purity is the primary differentiator.

Grey market and counterfeit risk

At ₹1,599, Isopure Creatine has significant counterfeit margin potential. Import supplements at this price point are among the most commonly counterfeited in the Indian market. Unlike Dymatize (scannable NSF batch code) or ON (holographic sticker with verification), Isopure Creatine has no easily consumer-verifiable anti-counterfeit feature.

Only buy from authorised channels

Isopure India products should be purchased from the official Isopure website, GNC franchise stores, or Amazon.in fulfilled by the brand's authorised distributor. Grey market or WhatsApp deal pricing for import creatine at this price point should be treated as suspect. The product is simple enough to counterfeit — a white powder in a tub — that verification matters more than it does for most categories.

Who this is for

Consider if: You are already buying Isopure Zero Carb Protein through official channels and want to add creatine from the same brand for convenience. The quality floor is real — Glanbia's manufacturing is strong.

Not recommended if: You are comparing on documented value. AS-IT-IS Creatine (NABL COA, ₹9.2/dose) gives you more verifiable purity documentation at a fraction of the price. Dymatize (NSF certified, ₹25/dose) gives you stronger certification for nearly the same price.

Not recommended if: You are buying from any channel other than the authorised importer. Grey market Isopure at this price is a meaningful counterfeit risk for a product with no scannable verification system.

Our score — rubric breakdown

Evidence (ingredient) 9.5 / 10

Creatine monohydrate, gold standard for the category. Evidence base is brand-independent — all monohydrate products score the same here.

Ingredient form 8.0 / 10

Creatine monohydrate, correct form, single ingredient. Particle size unstated — standard vs micronized not specified. Minor deduction consistent with other products where this specification is absent.

Purity & manufacturing 6.5 / 10

Glanbia's manufacturing infrastructure is strong — their facilities serve brands with third-party certification requirements. However, Isopure Creatine carries no active batch certification for the India market, no public COA, and no raw material source disclosure. Brand-level quality inference is not the same as product-level documentation. Score reflects this gap.

Value for money 3.5 / 10

₹26.7/dose with no certification to anchor the premium. At this price, Dymatize (NSF certified) is the better buy. The Isopure premium is purely brand equity — a cost with no independent evidence benefit for the buyer. Value score reflects this reality for a commodity ingredient.

Label honesty 7.0 / 10

Single ingredient, correct dose, no inflated claims. The Isopure branding implies purity (the brand name itself is a purity claim). The deduction is for no raw material source disclosure and no batch-level certification mark. The label is not dishonest — but the brand name carries an implicit purity claim that the label documentation does not independently substantiate.

Score formula: (9.5 × 0.30) + (8.0 × 0.20) + (6.5 × 0.20) + (3.5 × 0.15) + (7.0 × 0.15) = 2.85 + 1.60 + 1.30 + 0.525 + 1.05 = 7.325 → 7.3 / 10

References

  1. Kreider RB, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr. 2017;14:18.
  2. Rawson ES, Volek JS. Effects of creatine supplementation and resistance training on muscle strength and weightlifting performance. J Strength Cond Res. 2003;17(4):822–831.
  3. Wyss M, Kaddurah-Daouk R. Creatine and creatinine metabolism. Physiol Rev. 2000;80(3):1107–1213.
  4. Glanbia Performance Nutrition. Quality and safety standards overview. glanbia.com. Accessed Jul 2026.
  5. FSSAI Import Guidelines for Nutraceuticals and Health Supplements. fssai.gov.in. Accessed Jul 2026.