About 11,000 searches a month ask about creatine pills, most of them some version of whether a capsule does what a scoop does. No trial has compared the two. What can be measured is the arithmetic printed on the labels, and one small study of what happens when creatine reaches the gut undissolved. This is research journalism and contains no usage guidance, per our editorial standards.
Counting the evidence
A PubMed search on 2026-09-17 — creatine[tiab] AND (capsule*[tiab] OR tablet*[tiab]) AND powder[tiab] — returns 9 records. Three are pharmaceutical studies of how creatine tablets and powders behave under compression, heat and humidity. The rest are trials of herbal extracts, and one review, that mention capsules and powder for other reasons. None is a human trial of creatine capsules against creatine powder.
So the question splits into two that do have evidence: whether being dissolved changes absorption, and how much creatine a capsule actually holds.
Does solid creatine absorb differently?
A 2002 study at University College Chichester gave volunteers 2 g of creatine (2.3 g of the monohydrate) in different physical states and drew blood for six hours. Taken as a lozenge crushed in the mouth, or as a crystalline suspension in ice-cold water, the creatine gave a 20% lower peak plasma concentration and a 30–35% smaller area under the curve than the same dose fully dissolved in solution (Harris et al., J Sports Sci 2002;20(2):147–51, PMID 11811571).
Two readings of that are both true. Solid creatine reached the blood less completely and less sharply than dissolved creatine. And it still raised plasma creatine five- to six-fold in people averaging 75.6 kg, which the authors describe as "readily absorbed".
The study did not test capsules. A capsule adds a step — the shell has to open before the powder inside can begin to dissolve — and nobody has measured what that step does to plasma creatine, let alone to muscle creatine, which is what supplementation is meant to change. We look at the separate question of particle size, which affects how fast the powder dissolves, on micronized creatine.
What 83 labels say
The US National Institutes of Health keeps a database of supplement labels as they appear on the package. We queried it on 2026-09-17 for creatine monohydrate products, kept those named for creatine and sold as capsules or tablets and marked on-market, and read the creatine amount and serving size from each label. 83 products had usable figures (61 capsules, 22 tablets; one label with an obvious unit error was excluded).
| Measure (83 on-market capsule and tablet labels) | Value |
|---|---|
| Median creatine per capsule or tablet | 750 mg |
| Middle half of products | 700 – 1,000 mg |
| Range | ~320 – 2,500 mg |
| Capsules or tablets to reach 5 g, at the median | 7 |
| Most common count to reach 5 g | 7 (28 products), then 8 (18) |
| Median creatine per listed serving | 3,000 mg |
| Listed servings under 3 g | 41 of 83 |
| Listed servings of 5 g or more | 19 of 83 |
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database, API query of 2026-09-17; our tabulation. Database entries reproduce labels and are not laboratory analyses. Counts will change as products are added or withdrawn.
The typical fill in this set clusters at 700 to 1,000 mg, so the figures common in the literature take a handful of units. The International Society of Sports Nutrition's position stand states that once muscle stores are saturated they can generally be maintained with 3–5 g a day, and that larger athletes may need 5–10 g (Kreider et al., J Int Soc Sports Nutr 2017;14:18, PMID 28615996). Across 685 human trials the mean administered amount was about 12.5 g a day (Kreider et al., J Int Soc Sports Nutr 2025, PMID 40198156). At 750 mg a unit, that trial average is about 17 capsules.
That is the practical difference the labels show, and it sits in the serving size rather than in the chemistry: half the listed capsule servings deliver 3 g or less. We separate the three different dose figures in circulation on how much creatine.
Tablets have a physical quirk
Creatine monohydrate carries one molecule of water in its crystal. A 2005 study by Wakunaga Pharmaceutical compressed it into tablets and heated them: tablet hardness fell as the crystal water was lost, in a straight-line relationship with the degree of dehydration (Sakata, Shiraishi & Otsuka, AAPS PharmSciTech 2005;6(3):E527–35, PMID 16354014). That is a manufacturing and storage property — how well a tablet holds together — not evidence that creatine is lost. We found no study comparing creatine content over time in tablets against powder.
Label accuracy is a separate question
Nothing in the database confirms that a capsule holds what its label says. A 2022 survey of 175 creatine supplements on Amazon found only 8% were third-party certified (Escalante et al., Heliyon 2022;8(12):e12113, PMID 36544833). One author of that survey declares a board seat at a beverage company and expert-witness work on creatine cases. For the one creatine format where a laboratory survey has measured content against label claims and found roughly half of brands short, see creatine gummies.
What can honestly be said
- No trial compares creatine capsules with powder on plasma creatine, muscle creatine, strength or body composition.
- Undissolved creatine absorbs less sharply than dissolved creatine in the one study that tested physical state — about 20% lower at peak — and still raises plasma creatine five- to six-fold.
- The median US capsule or tablet holds 750 mg, so 5 g takes about seven, by our tabulation of 83 on-market labels.
- Half the listed capsule servings deliver under 3 g, below the common figures in the published literature.
- Tablets soften as they lose crystal water, a manufacturing property rather than a loss of creatine.
That 750 mg median turns up again in an unexpected place. Among single-ingredient creatine hydrochloride products — powders and sachets as well as capsules — twelve of thirteen labels declare exactly 750 mg per serving, which is a much smaller amount of creatine than the figure sounds, and is not the amount the trials of that form administered.
This page reports what labels state and what studies measured. It contains no recommendation, and decisions about supplementation belong with a clinician.
Sources
- Harris RC, Nevill M, Harris DB, Fallowfield JL, Bogdanis GC, Wise JA. Absorption of creatine supplied as a drink, in meat or in solid form. J Sports Sci 2002;20(2):147–51 — PMID 11811571 · doi:10.1080/026404102317200855
- NIH Office of Dietary Supplements. Dietary Supplement Label Database — API queries for creatine monohydrate products and individual label records, 2026-09-17 — dsld.od.nih.gov
- Kreider RB, Kalman DS, Antonio J, 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 — PMID 28615996 · doi:10.1186/s12970-017-0173-z
- Kreider RB, Gonzalez DE, Hines K, et al. Safety of creatine supplementation. J Int Soc Sports Nutr 2025;22(sup1):2488937 — PMID 40198156 · doi:10.1080/15502783.2025.2488937
- Sakata Y, Shiraishi S, Otsuka M. Effect of tablet geometrical structure on the dehydration of creatine monohydrate tablets, and their pharmaceutical properties. AAPS PharmSciTech 2005;6(3):E527–35 — PMID 16354014 · doi:10.1208/pt060366
- Escalante G, Gonzalez AM, St Mart D, et al. Analysis of the efficacy, safety, and cost of alternative forms of creatine available for purchase on Amazon.com. Heliyon 2022;8(12):e12113 — PMID 36544833 · doi:10.1016/j.heliyon.2022.e12113
All sources retrieved 2026-09-17. Digital object identifiers verified by content negotiation on the same date. Database and PubMed counts are as of that date.