# Best Protein Powders: the stierproducts tier list - Source: https://stierproducts.com/categories/protein-powders - Last researched: 2026-09-17T06:52:13.488Z - Evidence base: 18 products ranked across 184 cited reviews, videos and discussions - Method: https://stierproducts.com/methodology - Dataset: https://doi.org/10.5281/zenodo.22062813 - every board at once, one dated snapshot per release, same licence, prices and photographs left out - Reuse: Text, rankings, tier assignments, LP values and verdicts are free to quote and reuse with attribution to stierproducts and a link to the source URL (CC BY 4.0: https://creativecommons.org/licenses/by/4.0/). Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence. Whey, casein, egg and plant-based protein powders sold by the tub or bag; ready-to-drink shakes, protein bars, mass gainers, collagen peptides, creatine and pre-workouts are separate. ## Summary On the stierproducts protein powders board, Optimum Nutrition Gold Standard 100% Whey ranks #1 in S tier, ahead of Transparent Labs Grass-Fed Whey Protein Isolate (#2, S tier) and Thorne Whey Protein Isolate (#3, A tier). The board ranks 18 protein powders from S (best) to F (avoid), last researched 17 Sept 2026, drawing on 184 cited reviews, videos and discussions. Placed in the bottom tiers as ones to avoid: Sprout Living Epic Protein Vanilla Lucuma, BioSteel Vanilla Whey Protein, Truvani Plant Based Protein Powder, and 1 other. ## Ranking | Rank | Product | Brand | Tier | LP | Outlets | Verdict | Page | | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | Optimum Nutrition Gold Standard 100% Whey | Optimum Nutrition | S | 1356 | 40 | Not unsafe, just outclassed: a concentrate blend trading on fifteen-year-old goodwill while isolates beat it on every ownership metric. It still sweeps legacy roundups, but community sentiment has shifted against it. | https://stierproducts.com/products/optimum-nutrition-gold-standard-100-whey | | 2 | Transparent Labs Grass-Fed Whey Protein Isolate | Transparent Labs | S | 1049 | 10 | The consensus best protein powder of the current cycle: Labdoor-verified label accuracy, an 88% protein-by-weight ratio, flawless mixability, and the same clean formula year after year. The safest tub to own for a decade. | https://stierproducts.com/products/transparent-labs-grass-fed-whey-protein-isolate | | 3 | Thorne Whey Protein Isolate | Thorne | A | 742 | 4 | A certification-first brand whose reputation rests entirely on consistency, with NSF certification and clinical-grade manufacturing. Tastes good enough that you will actually finish the tub. | https://stierproducts.com/products/thorne-whey-protein-isolate | | 4 | Nutricost Whey Protein Concentrate Powder | Nutricost | A | 717 | 8 | The honest budget tub: clean, simple, mixes fine, and the community's designated alternative to overpriced brands. Ownership value nobody else on this board matches. | https://stierproducts.com/products/nutricost-whey-protein-concentrate-powder | | 5 | Legion Whey+ | Legion | A | 645 | 18 | Batch-tested, no artificial sweeteners, and a perfect score from Fortune's dietitians. Slightly thinner evidence base than the top two, but the same ownership philosophy. | https://stierproducts.com/products/legion-whey | | 6 | Dymatize ISO-100 | Dymatize | B | 607 | 29 | A pure isolate with a long, quiet record of mixing instantly and digesting easily. Uncited this cycle, but its multi-year mainstream standing earns the slot. | https://stierproducts.com/products/dymatize-iso-100 | | 7 | Momentous Whey Protein Isolate | Momentous | B | 579 | 4 | Batch-certified for sport, which is the gold-standard ownership guarantee. Uncited this cycle, ranked on the strength of that verification model. | https://stierproducts.com/products/momentous-whey-protein-isolate | | 8 | NOW Foods Whey Protein (Creamy Chocolate) | NOW Foods | B | 546 | 1 | The no-drama legacy tub from a company that does not reformulate. Uncited this cycle, kept for its exceptional stability. | https://stierproducts.com/products/now-foods-whey-protein-creamy-chocolate | | 9 | Naked Whey | Naked Nutrition | C | 459 | 19 | Outstanding ingredient simplicity and third-party certification, held back by a low protein-by-weight ratio and an unflavored taste many owners bail on. | https://stierproducts.com/products/naked-whey | | 10 | Swolverine Plant Protein | Swolverine | C | 447 | 1 | Two major outlets call it the best vegan powder and back it with testing claims, so you pay up from Orgain and here the product earns it. It ranks just behind Orgain under this lens because Orgain delivers a comparable experience for less money. | https://stierproducts.com/products/swolverine-plant-protein | | 11 | Orgain Organic Vegan Protein Powder | Orgain | C | 445 | 9 | The plant-based and budget slot. Formula-stable and widely available, but a blend with a middling protein-per-scoop ratio. | https://stierproducts.com/products/orgain-organic-vegan-protein-powder | | 12 | Equate Whey Protein Powder | Equate | C | 421 | 2 | The purest expression of the value lens. Consumer Reports found low lead levels in its tests, and budget-comparison coverage treats it as the benchmark store-brand whey that pricier tubs have to beat. It delivers the core whey experience for the least money on the board, which is why it takes the top spot. | https://stierproducts.com/products/equate-whey-protein-powder | | 13 | Ascent Clear Whey Protein Powder | Ascent | C | 409 | 1 | A legit top-pick listing from Steady Athlete and the best entry into clear whey, a fast-growing niche for people who hate milky shakes. It ranks last among the picks only because its value case is thinner than the others, not because the product fails. | https://stierproducts.com/products/ascent-clear-whey-protein-powder | | 14 | Factor Form Whey Protein | Factor Form | C | 382 | 1 | The best-tasting and most travel-friendly of the well-sourced picks, from a younger brand with a shorter track record. | https://stierproducts.com/products/factor-form-whey-protein | | 15 | Sprout Living Epic Protein Vanilla Lucuma | Sprout Living | D | 307 | 1 | The taste winner among vegan powders per Health.com's dietitian testing, but it is priced as a premium product, which keeps it out of the top tier under this lens. Buy it for enjoyment, not value. | https://stierproducts.com/products/sprout-living-epic-protein-vanilla-lucuma | | 16 | BioSteel Vanilla Whey Protein | BioSteel | D | 257 | 1 | Clean sports whey with an expert-list slot and no boutique markup. Slightly less proven than the top four, hence the position. | https://stierproducts.com/products/biosteel-vanilla-whey-protein | | 17 | Truvani Plant Based Protein Powder | Truvani | F | 206 | 2 | The most aggressively marketed premium plant protein examined, and it landed in Consumer Reports' heavy metal lead testing. Boutique pricing plus regulatory-adjacent scrutiny with no compensating test results places it last on the board. | https://stierproducts.com/products/truvani-plant-based-protein-powder | | 18 | Premier Protein Powder | Premier Protein | F | 73 | 7 | Low lead per Consumer Reports and huge availability, but the formulation leans on sucralose and the brand's position rests on marketing reach, not testing discipline. Buy Optimum Nutrition Gold Standard 100% Whey instead. | https://stierproducts.com/products/premier-protein-powder | ## Flagged as ones to avoid These entered one or more research runs as a product buyers cross-shop but should not buy, rather than as a pick. - Optimum Nutrition Gold Standard 100% Whey (#1, S tier): flagged by 1 of 15 runs. - Transparent Labs Grass-Fed Whey Protein Isolate (#2, S tier): flagged by 1 of 15 runs. - Thorne Whey Protein Isolate (#3, A tier): flagged by 1 of 15 runs. - Nutricost Whey Protein Concentrate Powder (#4, A tier): flagged by 2 of 8 runs. - Dymatize ISO-100 (#6, B tier): flagged by 1 of 6 runs. - Momentous Whey Protein Isolate (#7, B tier): flagged by 1 of 7 runs. - Naked Whey (#9, C tier): flagged by 2 of 15 runs. - Equate Whey Protein Powder (#12, C tier): flagged by 1 of 4 runs. - Sprout Living Epic Protein Vanilla Lucuma (#15, D tier): flagged by 1 of 4 runs. - BioSteel Vanilla Whey Protein (#16, D tier): flagged by 2 of 4 runs. - Truvani Plant Based Protein Powder (#17, F tier): flagged by 3 of 7 runs. - Premier Protein Powder (#18, F tier): flagged by 4 of 6 runs. ## Tier meanings - S: Exceptional. Finishes top run after run; capped at 3 slots per category. - A: Excellent. Strongly recommended, beaten only by the very best. - B: Good. A solid choice with real caveats worth knowing. - C: Fair. Acceptable in the right situation, outclassed at its price. - D: Weak. Hard to recommend when better options cost similar money. - F: Avoid. The evidence points you elsewhere. ## How to read this - Each category is researched in four independent runs, one per lens (expert consensus, value, reliability, community pulse). Every run ranks a board of candidates that deliberately includes products buyers cross-shop but should avoid. Placements score on a ranked ladder (LP), and tiers are derived from LP, so no tier is ever assigned by hand. - LP is the product's points on this category's ladder. It is comparable within a category and not across categories. - Outlets is how many distinct outlets are cited for that placement. The per-product page lists each citation, and shows which of their links were fetched and confirmed before publishing. - Nothing is hidden: every product the research placed is on this board. ## Limitations - We do not test products ourselves. Every placement is consolidated from published reviews, owner reports and community discussion, so a board is only as good as the sources behind it. - LP is points on this category ladder. It is comparable within a category and never across categories. - A board is a snapshot with a research date. Anything released or changed after that date is not in it yet. - Evidence is uneven across this board: products carry between 1 and 50 cited sources. The count for each is in the table above.