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Brand-quality audit Published Apr 27, 2026 Recalibrated Jun 14, 2026

21st Century HealthCare ("21st Century")

Budget supplement basics with verified GMP infrastructure, limited batch transparency, and mixed formula sophistication.

21st Century HealthCare ("21st Century") brand audit

Composite trust

77 /100 Adequate

21st Century is best understood as a budget/value supplement manufacturer with unusually verifiable manufacturing infrastructure for its price tier: current NSF/ANSI 455-2 GMP facility listings and a small NSF/ANSI 173 finished-product list support above-average manufacturing confidence.35 The tradeoff is transparency and formulation depth: I found no public batch COAs or sourcing map, and sampled labels show a split between straightforward basics and weaker performance/metabolic formulas.101516 Safety history is not clean but is mostly older and labeling-related, including a 2021 voluntary Class II Vitamin D3 label recall and two 2019 voluntary Class III recalls; no Class I recall or recent brand-specific FDA warning letter was found in the accessible pass.252636 For shoppers, the brand makes the most sense for low-cost basics, not for premium, clinical, practitioner-grade, or athlete-tested supplementation.13136

Quality

78 /100

Adequate

Formulation

49 /100

Poor

Transparency

91 /100

Excellent

Safety

77 /100

Adequate

Value

90 /100

Excellent

Sentiment

78 /100

Adequate

Evidence summary

Evidence summary

21st Century HealthCare shows baseline manufacturing credibility through NSF certification, but the public evidence base is thin and does not establish standout transparency, value, or trust.

  • NSF lists 21st Century under GMP certification, the clearest quality credential in the materials.3
  • Official company and distributor pages establish a real corporate footprint, but public disclosure depth stays limited.2
  • No material red flags surfaced, so the main caveat is limited independent performance evidence.

Top strengths

  • Quality: current NSF/ANSI 455-2 GMP facility listings and limited NSF/ANSI 173 product certification provide real manufacturing verification.[^3][^5]
  • Value: budget staples and national-brand-equivalent positioning are paired with visible pricing, subscription savings, and low-friction shipping terms.[^1][^12][^36]
  • Transparency: ownership, Tempe manufacturing location, and facility certifications are relatively easy to verify for a budget supplement brand.[^3][^21][^22]

Key concerns

  • No public COA portal or batch-level lab results were found, so shoppers cannot independently verify heavy metals, microbial results, or potency by lot.[^10][^36]
  • Sampled performance/metabolic formulas show underdosing or pixie-dusting concerns compared with their marketing positioning.[^15][^16][^19]
  • Safety history includes older voluntary mislabeling recalls, older Prop 65 lead-related litigation context, and an older glucosamine/chondroitin advertising lawsuit.[^25][^28][^30]

Badges

NSF certified Third-party tested Premium ingredients Fair value Transparent pricing Underdosing concern

Axis by axis

What the evidence shows

Quality

78/100 Adequate

Quality is the brand’s strongest axis: current NSF/ANSI 455-2 GMP facility listings and a small set of NSF/ANSI 173 finished-product certifications provide real third-party manufacturing support. The limiting factor is verification depth: I found no public batch COA portal and only limited public product-level independent testing, so the evidence supports above-average manufacturing confidence but not top-tier transparency or batch-level assurance.35810

Formulation

49/100 Poor

Formulation quality is mixed. Basic vitamins, minerals, fish oil, and creatine products are mostly straightforward and fully labeled, but several sampled performance/metabolic formulas look underdosed or over-marketed relative to their active doses. I found no brand-owned clinical trials, so the brand scores like a budget basics manufacturer rather than an evidence-led formulation innovator.12151635

Transparency

91/100 Excellent

Transparency is above average for a budget brand on facility and ownership facts: the Tempe manufacturing footprint, NSF GMP status, and 2026 Grant Avenue ownership are verifiable. The main limitation is consumer-level test transparency: I found testing claims but no public batch COAs, sourcing map, or lot-level contaminant results.372136

Safety

77/100 Adequate

The safety record is not spotless, but the issues found are older and mostly labeling-related rather than severe contamination or undeclared-drug events. The main scored safety hits are a 2021 voluntary Class II Vitamin D3 label recall, two 2019 voluntary Class III private-label/product-labeling recalls, an older glucosamine/chondroitin claim lawsuit, and older Prop 65 lead-related litigation context.25262830

Value

90/100 Excellent

Value is a core reason to consider 21st Century: it sells budget staples, national-brand-equivalent products, and low-cost basics while still having verifiable NSF GMP facility oversight. The caution is product selection: simple staples look like better value than some newer sports/metabolic formulas whose doses do not fully support their positioning.131536

Sentiment

78/100 Adequate

Social sentiment is adequate but not passionate. Retail customers on iHerb rate some staples highly and often mention affordability, while Reddit/forum sentiment is sparse and mixed, with occasional concern about cheap forms. I found no strong community warning pattern, but also no evidence that 21st Century is a practitioner-grade or enthusiast-favorite brand.31394041

The rubric

How every score was built

Each axis opens at a category baseline, then moves only on dated, cited evidence — never a gut call. That is the whole difference from a star rating: every one of these 32 adjustments is a receipt you can check.

Points What moved the score
Quality baseline 50 78 Adequate
+15 NSF/ANSI 455-2 GMP certification for dietary-supplement manufacturing and packaging facilities 34 Current NSF listing checked June 2026; full recency weight. Multiple Tempe, Arizona facilities are listed for NSF/ANSI 455-2 dietary supplement GMP operations, including manufacturing technologies such as coating, encapsulation, mixing, tablet compression, packaging/labeling, and warehousing. · full weight
+5 Limited NSF/ANSI 173 finished-product certification 567 Current NSF finished-product listings checked June 2026; full recency weight. Only 4 finished products were found in the NSF/ANSI 173 listing, so this receives the low end of the +5 to +10 range rather than broad-portfolio credit. · full weight
+4 Independent product testing signal from ConsumerLab, but only 1 sampled 21st Century product in accessible brand report 89 ConsumerLab brand page and multivitamin reporting available in 2026; full recency weight. Pattern strength is isolated: 1 product found in ConsumerLab’s brand page, so credit is limited. · full weight
+4 Company discloses quality-control, vendor-certification, and product-testing practices, but without public batch-level lab reports 121011 Current official website claims reviewed June 2026; full recency weight. Credit is modest because the claims are company-disclosed and not paired with public COAs or ISO 17025 lab reports. · full weight
— Not scored No public COA portal, no public batch-level heavy-metals/microbial results, no public ISO 17025 lab-scope document, and no comprehensive product-by-product certification list beyond the NSF directory were found in accessible sources.
Formulation baseline 50 49 Poor
+8 Effective dosing in several simple, single-ingredient or basic products sampled 1213141718 Current or recent product labels reviewed in 2026; full recency weight. Of 10 sampled products, simple items such as D3 2000 IU, magnesium glycinate, creatine powder, creatine gummies, and B-12 appear straightforward and plausibly dosed for their intended supplement role, but not enough of the broader line was audited for higher credit. · full weight
+5 No proprietary blends found in sampled labels 1213141516171819 Current/recent labels reviewed in 2026; full recency weight. In the sampled products, actives were disclosed individually rather than hidden in proprietary blends. · full weight
+5 Selective use of premium or evidence-familiar ingredient forms/brands 13141516 Current labels reviewed in 2026; full recency weight. Credit is limited because premium forms are present in select products, not demonstrated as a dominant catalog-wide pattern. · full weight
+3 Relatively clean labels in several sampled simple products 12131415 Current labels reviewed in 2026; full recency weight. Multiple sampled products have few inactive ingredients, but some tablets still use standard excipients and coating agents, so credit is modest. · full weight
−10 Underdosed or weakly supported formulas in sampled performance/metabolic products 151619 Current/recent labels reviewed in 2026; full recency weight. Pattern calculation: 3 of 10 sampled products raised dose-evidence concerns (30%). Rubric reference penalty is about -15 to -25 for a pattern; applying roughly 50% of a -20 midpoint yields -10 because the pattern is significant in the sampled performance/metabolic subset but not proven catalog-wide. · full weight
−4 Cheap or less-preferred mineral/vitamin forms in sampled multivitamin/mineral products 2034 Recent/current labels; full recency weight. Sampled multivitamin/mineral labels include forms such as magnesium oxide, zinc oxide, cyanocobalamin, and sulfate minerals; this is a low-to-moderate penalty because it is common in budget multivitamins and not shown across the whole line. · full weight
−4 Pixie-dusting concern in GLP-1 Daily Support-style multi-ingredient formula 16 Current product page reviewed 2026; full recency weight. GLP-1 Daily Support lists several low-dose adjuncts, including taurine 25 mg, inulin 10 mg, and resveratrol 5 mg, so the penalty is applied to one sampled multi-ingredient formula rather than generalized to the entire catalog. · full weight
−4 Strong performance/metabolic marketing claims not matched by finished-product clinical evidence found 15161935 Current/recent claims reviewed in 2026; full recency weight. The penalty is modest because claims are structure/function framed with disclaimers, but I did not find brand-owned human clinical trials supporting the stronger performance and GLP-1-adjacent positioning. · full weight
— Not scored This was a sampled label audit, not a full catalog audit. The biggest gaps are lack of finished-product clinical trials, no comprehensive current label database for every SKU, and no batch COAs to confirm active potency against label claims.
Transparency baseline 50 91 Excellent
+10 Ownership and transaction history disclosed through credible business reporting 2122 Grant Avenue acquisition announced January 21, 2026; full recency weight. The PE owner and ongoing management partnership are publicly disclosed. · full weight
+9 Manufacturing locations disclosed and independently corroborated 123423 Current 2026 sources; full recency weight. Official site, NSF listings, and company profile sources consistently point to Tempe, Arizona operations. · full weight
+8 Shares facility certifications through official NSF directories 3457 Current NSF listings checked June 2026; full recency weight. Strong credit because the facility listing is independently verifiable, but not maximum because batch-level COAs are not public. · full weight
+6 Testing disclosed, but no public COAs or batch lookup found 101136 Current official claims and 2026 secondary review; full recency weight. This fits the rubric tier of testing disclosed without public COAs, not the public-COA tier. · full weight
+4 Clear active-ingredient labeling in sampled products, with no proprietary blends found 121314151619 Current/recent labels reviewed in 2026; full recency weight. Credit is for sampled labels only, not a full catalog audit. · full weight
+4 Subscription and shipping terms are displayed on official product pages/homepage 112 Current official website reviewed June 2026; full recency weight. Credit is modest because it is normal e-commerce disclosure, but terms such as 10% subscription savings, skip/cancel language, and free-shipping threshold are visible. · full weight
— Not scored No batch COA access process, public COA portal, supplier/country-of-origin sourcing map, ISO 17025 lab scope, or documented customer-service response to COA requests was found in accessible sources.
Safety baseline 90 77 Adequate
−4 Voluntary Class II recall for 21st Century Vitamin D3 125 mcg / 5000 IU labeling issue 2526 Initiated May 2021; as of June 14, 2026 it is just over 5 years old, so 50% temporal weight is applied. Base severity chosen: -8 for voluntary mislabeling recall that was terminated; 50% weight = -4. · 50% weight
−3 Two 2019 voluntary Class III private-label/product-labeling recalls tied to Twenty-First Century Healthcare 2527 Initiated January 2019; 5-10 years old, so 50% temporal weight is applied. Base severity chosen: -6 total for two Class III, firm-initiated, terminated mislabeling recalls; 50% weight = -3. · 50% weight
−4 Older consumer-fraud class action alleging glucosamine/chondroitin cartilage-restoration claims 2829 Filed in 2012; more than 10 years old, so 25% temporal weight is applied. Base severity chosen: -15 because it was a class-action allegation about supplement claims, not a proven safety injury; 25% weight rounds to -4. Outcome was not located in accessible sources, so language remains alleged. · 25% weight
−5 Older California Prop 65 lead-related consent judgment involving specified vitamin/mineral products 3031 Court/Prop 65 documents accessible from 2018 and later notice material; treated as 5-10 years old with 50% temporal weight. Base severity chosen: -10 for lead-related Prop 65 litigation/settlement context without evidence found of FDA recall, hospitalization, or current federal action; 50% weight = -5. · 50% weight
+3 No recent major FDA warning letter or Class I recall found in accessible sources; limited clean-recent-record credit 253637 Current research pass in 2026; full weight. Credit is limited because the brand has older recalls/litigation and the absence of findings is not proof of absence. · full weight
— Not scored I did not locate FDA Form 483 inspection observations, an FDA warning letter, adverse-event trend data, or final court outcome documents for the 2012 class action in accessible sources. Absence of those records in this search is not proof that none exist.
Value baseline 50 90 Excellent
+20 Budget/value pricing across many staples and national-brand-equivalent positioning 1313436 Current/recent retail and brand sources reviewed in 2026; full weight. The brand markets national-brand equivalents and compare/save products, and large iHerb review volume for low-cost basics supports budget/value positioning. This is scored at the low end of the +20 to +30 tier because not every direct-to-consumer item is cheapest. · full weight
+8 Transparent direct-to-consumer pricing and visible subscription discount 112 Current official site reviewed June 2026; full weight. Prices, one-time purchase, subscribe-and-save pricing, and cancellation/skip wording are visible on product pages. · full weight
+4 Reasonable free-shipping threshold and promotional bundle/BOGO mechanics 1 Current official homepage reviewed June 2026; full weight. Free shipping over $25 and time-limited BOGO/bundle messaging are visible; credit is modest because this is a common DTC practice. · full weight
+8 Low-cost products are partly justified by in-house manufacturing scale and NSF GMP facility oversight 232123 Current/recent 2026 evidence; full weight. Value is stronger because low prices are paired with independently listed GMP facilities rather than only anonymous contract-manufacturing claims. · full weight
— Not scored A complete apples-to-apples cost-per-serving table across Walmart, iHerb, Amazon, pharmacy channels, and the official store was not completed. Prices are volatile and channel-specific, so value conclusions are strongest at the brand-positioning level and for sampled products.
Sentiment baseline 60 78 Adequate
+10 Strong iHerb customer ratings for sampled high-volume staple product 31 iHerb review page crawled in 2026; full recency weight. One Daily Essential shows 4.7 stars from more than 3,000 ratings, but credit is limited to a sampled product and retail channel. · full weight
+6 Additional positive iHerb/social proof for beauty supplement line 33 Review page includes 2026 customer review content; full recency weight. Credit is limited because this is one product category, not the full catalog. · full weight
+3 Mixed but present community discussion: budget users sometimes recommend or defend the brand 394042 Sources range from older forum context to 2024-2025 Reddit; mixed recency. Full weight applied only as a small positive because the pattern is modest. · full weight
+3 Official support availability and customer-help claims 112 Current official site reviewed June 2026; full weight. Credit is modest because I found official chat/help claims, not independent customer-service resolution data. · full weight
−4 Reddit/community concerns about cheap forms and uncertain quality 3941 Recent Reddit thread in 2024 and broader supplement-brand discussion; full weight. Small penalty because the evidence is low-volume and mixed, not a sustained avoid-brand pattern. · full weight
— Not scored No clean BBB profile, Trustpilot page with meaningful review volume, comprehensive Amazon review audit, or large Reddit sentiment dataset was found for the supplement brand specifically.

Best for

  • Budget shoppers buying simple staples such as vitamin D, B vitamins, basic multivitamins, magnesium, creatine, or commodity fish oil, especially when price matters more than premium forms or public COAs.[^1][^12][^14][^31]
  • Shoppers who want a low-cost brand with independently verifiable U.S. GMP facility listings rather than an anonymous marketplace supplement brand.[^3][^4]
  • Retail/private-label buyers who value domestic Tempe manufacturing scale, broad catalog breadth, and national-brand-equivalent positioning.[^1][^21][^23]

Skip if

  • You require public batch COAs, lot-specific heavy-metals results, or downloadable third-party lab reports before buying.[^10][^36]
  • You are choosing sports/performance supplements and want clinically dosed pre-workout actives, NSF Certified for Sport, or banned-substance certification; I found NSF/ANSI 173 for a few products, not NSF Certified for Sport.[^5][^7][^15]
  • You prefer practitioner-grade brands with finished-product clinical trials, premium mineral forms across the line, or deep sourcing transparency.[^10][^20][^35]

Questions

What shoppers ask about 21st Century HealthCare ("21st Century")

Are 21st century vitamins made in the USA?

Many 21st Century products are presented as manufactured in Tempe, Arizona, and NSF’s current GMP listings verify multiple Tempe facilities for 21st Century Healthcare. Because the company also sells a broad catalog and private-label products, shoppers should still check the specific product label for the most current manufacturing statement.134

Where is 21st century healthcare headquarters?

21st Century HealthCare is headquartered in Tempe, Arizona. The 2026 Grant Avenue acquisition announcement and company profile sources identify the business as a Tempe-based vitamins, minerals, and supplements manufacturer.212223

Is 21st century fish oil a good brand?

For fish oil, the current direct-to-consumer product is better than many commodity 300 mg omega-3 softgels because the official page lists 750 mg total omega-3 per 1000 mg softgel and says the oil is molecularly distilled. The limitation is verification: I found no public batch COA showing oxidation markers, EPA/DHA split, heavy metals, or contaminants for a specific lot.1210

Does UnitedHealthcare have a good reputation?

UnitedHealthcare is a separate insurance company and is not the supplement maker scored here. This scorecard evaluates 21st Century HealthCare supplements, a Tempe-based vitamins/minerals/supplements manufacturer; use insurer-specific sources if you are evaluating UnitedHealthcare.212344

What is the best vitamin company in the US?

There is no single best vitamin company for every shopper; it depends on whether you prioritize public COAs, USP/NSF product certification, practitioner use, price, or specialty formulas. Based on this review, 21st Century is a budget/value option with verified GMP facilities, not the strongest choice if "best" means public batch testing, broad premium forms, or finished-product clinical trials.351036

Is century 21 a good vitamin brand?

If you mean 21st Century vitamins, it is a reasonable budget brand for simple staples, helped by current NSF GMP facility listings and strong value pricing. It is not a top transparency or premium-formulation brand because public COAs were not found and some sampled formulas use cheaper forms or underdosed performance-style actives.315203136

Sources

  1. 1. 21st Century Vitamins official homepage (2026)
  2. 2. 21st Century Singapore distributor - Who We Are (2026)
  3. 3. NSF Official Listing - NSF/ANSI 455-2 GMP for 21st Century Healthcare, Inc. (2026)
  4. 4. NSF Official Listing - 21st Century GMP facility addresses and technologies (2026)
  5. 5. NSF Official Listing - 21st Century NSF/ANSI 173 finished products (2026)
  6. 6. NSF Product Detail - 21st Century D3 50 mcg (2000 IU) (2026)
  7. 7. NSF Product Detail - 21st Century ONE DAILY Men’s Health (2026)
  8. 8. ConsumerLab 21st Century brand page (2026)
  9. 9. ConsumerLab multivitamin testing news release mentioning 21st Century Sentry (2023)
  10. 10. 21st Century official homepage quality, sourcing, manufacturing, subscription and shipping disclosures (2026)
  11. 11. 21st Century Fish Oil product page quality/testing statement (2026)
  12. 12. 21st Century Fish Oil 1000 mg product page (2026)
  13. 13. 21st Century Full Fuel 365 Creatine Gummies product page (2026)
  14. 14. 21st Century Full Fuel 365 Creatine Monohydrate Powder product page (2026)
  15. 15. 21st Century Full Fuel 365 Pre-Workout Performance product page (2026)
  16. 16. 21st Century GLP-1 Daily Support product page (2026)
  17. 17. 21st Century Magnesium Glycinate 1000 mg product page (2026)
  18. 18. 21st Century Vitamin D3 50 mcg product page (2026)
  19. 19. 21st Century Full Fuel 365 L-Arginine 1000 mg product page (2026)
  20. 20. 21st Century Sentry Multivitamin label information via Same Day Supplements (2026)
  21. 21. Grant Avenue Capital acquires 21st Century Healthcare - Business Wire/Yahoo Finance (2026)
  22. 22. S&P Global Market Intelligence deal wrap - Grant Avenue buys 21st Century Healthcare (2026)
  23. 23. 21st Century HealthCare LinkedIn company profile (2026)
  24. 24. Justia Trademarks - Full Fuel 365 application by Twenty-First Century Healthcare, Inc. (2025)
  25. 25. RecallDex - Twenty-First Century Healthcare, Inc. recalls (2026)
  26. 26. CenterWell Pharmacy - Important information about Vitamin D3 5000 IU tablets recall (2021)
  27. 27. BeautifyData FDA recall summary - Twenty-First Century Healthcare 2019 F-1147-2019 (2026)
  28. 28. Law360 case page - Auerbach v. 21st Century Healthcare Inc. (2012)
  29. 29. BigClassAction - Glucosamine/Chondroitin class action allegations (2012)
  30. 30. California Attorney General - People v. 21st Century amended consent judgment PDF (2018)
  31. 31. Chanler - 60-day notice involving Twenty-First Century Healthcare PDF (2026)
  32. 32. Therapeutic Goods Administration - 2003 Pan Pharmaceuticals recall list PDF (2003)
  33. 33. iHerb reviews - 21st Century Hair, Skin & Nails (2026)
  34. 34. AmeriLifeVitamin index of 21st Century product catalog/legacy SKUs (2026)
  35. 35. 21st Century official site - FDA disclaimer and structure/function claims (2026)
  36. 36. Suplmnt brand investigation - 21st Century supplements: value-first GMP with sparse public testing (2026)
  37. 37. FDA Warning Letters database landing page (2026)
  38. 38. OSHA inspection detail - Twenty-First Century Healthcare, Inc. (2016)
  39. 39. Reddit r/Supplements - 21st Century Supplements discussion (2024)
  40. 40. Longecity forum - How does 21st Century fare as a supplement brand? (2013)
  41. 41. Reddit r/Supplements - popular supplement brands to avoid discussion (2024)
  42. 42. Reddit r/ShopeePH - trusted vitamin shop/brand recommendations mentioning 21st Century (2024)
  43. 43. BBB complaints page for unrelated 21st Century Health Care Consultants (2026)
  44. 44. The Zebra - 21st Century Insurance review, unrelated to supplements (2026)
  45. 45. Trustburn - 21st Century HealthCare reviews page (2026)

Recalibrated Jun 14, 2026 · 32 scored adjustments · 39 distinct citations across 45 sources

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