Testing Organics Ocean Pure Magnesium Glycinate + Low Dose Zinc for Lead, Cadmium, Mercury, & Arsenic with Third-Party, Independent Laboratory Testing

ByTamara Posted:
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Published July 2, 2025 — Wednesday
A Quick Note from Tamara Rubin:

Please read the screenshots above with marketing / advertising pushed out by the manufacturers of the Organics Ocean Pure Magnesium Glycinate Product (+ Low Dose Zinc). The irony about this product is the fact that the company claims that it has the following properties (all quotes from the above images):

  • “Contains the cleanest minerals available”
  • “The purest and safest form of high absorbable magnesium”
  • “6x fewer heavy metals” and
  • “6x less heavy metals”
  • “Unrivaled Purity”

This is ironic because this product tested positive for the highest level of Lead in a magnesium supplement out of all of the Magnesium supplements that we have tested to date (see charts below). It also tested positive for Cadmium (a known Carcinogen), when the other Magnesium supplements we tested came back “non-detect’ for Cadmium (with the limits of detection noted in the charts below).

You may be asking… “how is it possible that this company can be making these claims, when they tested positive for a higher level of Lead (as measured in parts per billion) than the other Magnesium supplements we have tested? ”

  • Well we’re not 100% sure which metrics they are using to support those claims (or what comparative reference points), but we expect it has something to do with their assertion of having “50% smaller capsules” combined with measuring the heavy metals based on “serving size” based metrics, not based on total content as measured in parts per billion (ppb).
    • Even if the point noted above is a basis for their claims, with the numbers we are finding this argumentation would also not make sense.
    • Even if they make the pills half the size of other comparable magnesium supplements, given the levels of Lead we found in this product, the Organics Ocean product would still have a greater amount of Lead using a serving size based metric than comparable products.
    • While the math doesn’t pan out here, it still may be the logic they are using to support their claims.
  • Their claims might also have something to do with the fact that each of the Magnesium supplements that we have tested to date have been for slightly different Magnesium formulations, however we have not yet found another Magnesium supplement noted to be “Magnesium Glycinate + Low Dose Zinc” to use as the basis for a direct (apples to apples)  comparison.
    • We are truly curious if there is another specific “Magnesium Glycinate + Low Dose Zinc” supplement that they are using as a basis of comparison.
    • If you (anyone reading this article) know of another brand that has  “Magnesium Glycinate + Low Dose Zinc” supplement that we could test as a more direct (apples-to-apples) basis of comparison, please do comment below and include a link to that product so that we can consider testing it. Thank you!

In the meantime we will be testing more Magnesium supplements products to have a broader base for comparison (and to try to figure out the source of these claims) – however whatever Organics Ocean’s argumentation might be, it is our opinion (based on the testing we have done to date) that their marketing is deceptive as the noted statements above not objectively true.

  • The Organics Ocean product tested positive for 26.28 ppb Lead.
  • 26.28 ppb Lead  is  greater than THREE TIMES the amount of Lead we found in the lowest Lead Magnesium supplement we have tested to date.
  • “3X” is the opposite of “6x less” no matter how you do the math.
  • These numbers – the ppb readings – also remain the same when all other metrics are equal, for example if the serving size (in volume or weight) of each product is the same, that would not change the ppb readings for the amount of metals in each different product (ppb readings are a consistent metric, regardless of serving size).

Organics Ocean’s assertion that  this Magnesium supplement has “6X less” heavy metals than other comparable products would mean that other comparable products would test positive for something in the neighborhood of 96.48 to 112.56 ppb Cadmium (depending on your interpretation of what they mean by “6X less”) and something in the neighborhood of 157,68 to 183.96 ppb Lead — and this is simply not consistent with our findings (using independent, third party, community-funded / unbiased laboratory testing).

Please scroll down to see the full original lab report for this product.

The Lead Safe Mama, LLC Community-Collaborative Laboratory Testing Initiative is a project (started in March 2024) through which members of the greater Lead Safe Mama online community nominate products for laboratory testing and then collectively crowd-fund to cover the costs of the lab testing and reporting on nominated products.  Tamara Rubin volunteers her time in support of this initiative (see our detailed budget below).

Lead Safe Mama, LLC is closed out the month of June with an operating deficit of about $7,500.00 — primarily because we sent quite a few products to the lab for testing that we did not yet raise funds for.  We felt it was important (and relatively urgent) to get many of these products tested asap – as many are either products commonly consumed by young children, or sunscreen products  (we have reports pending / to be published shortly for more than 40 products).

If you appreciate the work we do and would like to help keep our work going by contributing something (any amount really!) in support of covering the costs of our not-yet-funded testing and reporting, please consider making a contribution ($25? , $50? $100?  — whatever you can afford) in support of the work of Lead Safe Mama, LLC through our General Fund GoFundMe or – even better – please consider  joining us on Patreon with a small monthly contribution in support of the work. Thank you.

Here also are FOUR specific not-yet-funded campaigns that could use your contributions – if you are in a position to help us cover the costs of testing and reporting for any of these products:

  1. That’s It Mini Fruit Bars From Costco (all flavors shown will be tested separately)
  2. Badger Baby Sunscreen, SPF 40
  3. ThinkSport SPF 50 Sunscreen
  4. Tubby Todd SPF 50 Sunscreen For Kids

The full original lab report for this Organics Ocean Pure Magnesium Glycinate (+ Low Dose Zinc) Supplement (pictured above) can be found at the bottom of this article (below the sharable social media graphic and below our safer choices list).

Again, thank you for reading and thank you for sharing this information in your communities.

The original lab report for this product is at the bottom of this article. Please scroll down.

This product (below) is yet another Magnesium-based product that also tested cleaner than the Organics Ocean product noted above:

For those new to the work of Lead Safe Mama, LLC

Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood Lead poisoning prevention and consumer goods safety, and a documentary filmmaker. She is also a mother of Lead-poisoned children (two of her four sons were acutely Lead-poisoned in 2005).

This is an ad-free article.

Advertising and affiliate income help Lead Safe Mama, LLC cover the costs of the work we do here (independent consumer goods testing and childhood Lead poisoning prevention advocacy). We have removed ads from most of our more widely-read articles and new articles (like this one!) to make them easier for you to read. You can support this work by starting any shopping you might be doing by first clicking  on one of our affiliate links, — you don’t need to buy what we link to for Lead Safe Mama, LLC to possibly receive a percentage of what you spend (at no extra cost to you), you simply need to click any one of our Amazon affiliate links and then go about your Amazon shopping as you normally would! Thank you for supporting our work in this way.

Are you interested in seeing MORE safer choices?

Below is an expanding list of products (foods, supplements, cosmetics, and personal care items – including sunscreens and toothpastes) that tested “non-detect” for Lead, Mercury, Cadmium, and Arsenic with independent, third-party, community-funded laboratory testing coordinated by Lead Safe Mama, LLC (an Oregon-based small business with a unique community-collaborative business model and a focus on consumer goods safety and childhood Lead poisoning prevention). The product examples below clearly demonstrate that companies can manufacture safer choices (at least from the perspective of a concern for heavy metals contamination).
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The limits of detection (low-threshold of detection) for each of the metals tested are noted in the lab report for the specific product listed. To see the full original lab report for any of these products, type the brand name into the search bar at the top of any page on Lead Safe Mama dot com (and scroll down to the bottom of the related article). All our published lab reports are also linked here, on our lab testing landing page.
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Flavors (or specific variations) tested are noted, and other variatons of the same product (or other products from the same brand) have either not been tested or have been tested but did not yield similar results. Test results only apply to the specific products listed and linked below.

Products on our “safer choices” list are retested periodically (annually or more frequently, as funding permits). If a product no longer tests clean, it is removed from the list.

LIST UPDATED — June 29, 2025, Sunday
Now at 75 products + 6 “bonus” options. Scroll down to see all 81 Lab-tested Safer Choices:
  1. Baby Food — 1 — Little Spoon Kale, Carrot + Pear BabyBlends
  2. Baby Food — 2 —Little Spoon Butternut Squash + Blueberry BabyBlends
  3. Baby Food — 3 — Little Spoon Sweet Potato BabyBlends
  4. Baby Food — 4 — Little Spoon Sweet Potato + Carrot BabyBlends
  5. Baby Food — 5 — Little Spoon Banana + Pitaya BabyBlends
  6. Beverage — 1 — Honest Kids Organic Appley Ever After Apple Juice Drink: https://amzn.to/4fjGhov
  7. Beverage — 2 —  Olipop Grape Tonic: https://amzn.to/4cjFYZu
  8. Beverage — 3 — Synergy Golden Pineapple Kombucha: https://amzn.to/3HVzMgM
  9. Breakfast Cereal — 1 — Nature’s Path Envirokidz Organic Panda Puffs: https://amzn.to/4fo1crf
  10. Breakfast Cereal — 2 — Nature’s Path Envirokidz Organic Corn Puffs Gorilla Munch: https://amzn.to/3FHZCDO
  11. Candy — 1 — Cavendish & Harvey Wild Berry Drops, not organic (Made in Germany): https://amzn.to/3Z1Jxjr
  12. Candy — 2 — Haribo Gummy Bears (Made in Germany, not USA-produced): https://amzn.to/3FCGVlu
  13. Candy — 3 — Lindt White Chocolate Bar (Made in USA, New Hampshire): https://amzn.to/3OXkyIm
  14. Candy — 4 — Werther’s Original Butter Candies (Made in Germany, not USA-produced): https://amzn.to/4nkFc5i
  15. Coffee & Tea — 1 — Chameleon Handcrafted Organic Cold Brew Concentrate: https://amzn.to/3OcrH77
  16. Coffee & Tea — 2 —Tao of Tea Organic Genmaicha (Tamara’s favorite, from Japan, sold by a Portland, Oregon-based company!): https://amzn.to/3Dp8Fsd
  17. Coffee & Tea — 3 — Califia Farms Almond Latte Cold Brew (XX Espresso): https://amzn.to/4gTTGoJ
  18. Coffee & Tea — 4 — Death Wish Organic Espresso Roast Ground Coffee (Multi-country origin, non-USA): https://amzn.to/3yo1eiL
  19. Cosmetic— 1 — Babo Botanicals Sensitive Baby Lotion: https://amzn.to/3YmKxy1
  20. Cosmetic — 2 — Kora Organics Noni Face Oil: https://amzn.to/43hy2XO
  21. Cosmetic — 3 — Supergoop! Unseen Sunscreen, SPF 50 (Chemical Sunscreen, Please Read Article): https://amzn.to/3HRMVrl
  22. Dairy — 1 — (cheese) — Babybel Mini Original Snack Cheese: https://amzn.to/3ZY5noO
  23. Dairy — 2 — (coffee creamer) — Organic Valley Grassmilk Half and Half: https://amzn.to/4fHJIWT
  24. Fruit Snack — 1 — (bar) — Pure Organic Layered Fruit Bars in Raspberry Lemonade Flavor: https://amzn.to/3XcFsIp
  25. Fruit Snack — 2 — (bar) — Pure Organic Layered Fruit Bars in Strawberry Banana Flavor: https://amzn.to/3WQEekA
  26. Fruit Snack — 3 — (pouch) — Costco’s Kirkland Organic Apple Sauce Pouch: https://amzn.to/4gOYpZ9
  27. Fruit Snack — 4 — (pouch) — GoGo Squeez Organic Apple Sauce Pouch: https://amzn.to/3XhWYLe
  28. Fruit Snack — 5 — (pouch) — Once Upon A Farm Dairy Free Fruit Smoothie Pouch in Strawberry Banana Swirl Flavor: https://amzn.to/3CPMbAw
  29. Infant Formula — 1 — Bobbie Organic Gentle Infant Formula Milk-Based Powder with Iron (pink and white can): https://amzn.to/3YYb849 
  30. Infant Formula — 2 — Bobbie Organic Infant Formula Milk-Based Powder with Iron (green and white can): https://amzn.to/3VOr4Vy
  31. Infant Formula — 3 — Bobbie Grass-Fed Milk-Based Powder with Iron (green can): https://amzn.to/3ZlAaeJ
  32. Infant Formula — 4 — ByHeart Infant Formula (USA-made, not organic): https://amzn.to/48DJjTb
  33. Infant Formula — 5 — HiPP Bio Combiotik Infant Formula Powder, Stage 1 (imported)
  34. Infant Formula — 6 — HiPP HA Stage PRE (0+ Months) Combiotic Formula  (imported)
  35. Infant Formula — 7 — Holle Bio Goat Stage 2 Infant Formula (for 6-10 months, organic, European — Swiss/ German/ Austrian) is not available on Amazon, but the Stage 3 version of this product is (not yet tested, but will likely test similarly): https://amzn.to/3BVU7zI
  36. Infant Formula — 8 — Kendamil Goat Infant Formula (not organic): This product may be available at Target (it is not available on Amazon)
  37. Infant Formula — 9 — Kendamil Organic Follow-On Milk (European/ British Toddler Formula, for 6-12 months, Cow Milk): Not available on Amazon 
  38. Infant Formula — 10 — Kendamil Whole Milk Infant Formula (from Europe, pink can, not organic), available at Target
  39. Infant Formula — 11 — Kendamil Organic Infant Formula (Cow Milk): Not available on Amazon but may be available at Target
  40. Ingredient — 1 — (baking flour) — Jovial Organic Einkorn Flour (Italy): https://amzn.to/3LIqxix 
  41. Ingredient — 2 — (beans) — Jovial Organic Chickpeas, Product of Italy: https://amzn.to/4iRON1l
  42. Ingredient — 3 — (vinegar) — Napa Valley Naturals Organic Red Wine Vinegar (California): https://amzn.to/4jWhHOg
  43. Oil — 1 — (avocado) — Chosen Foods 100% Avocado Oil (not organic): https://amzn.to/3YDZSuv
  44. Oil — 2 — (coconut) — Dr. Bronner’s Regenerative Organic Coconut Oil: https://amzn.to/40xwBmv
  45. Oil — 3 —  (olive) — Bryan Johnson BluePrint Snake Oil Olive Oil (not organic): https://amzn.to/4mMieUj
  46. Oil — 4 — (perilla seed) — Dr. Adorable’s Organic Perilla Seed Oil (Korea): https://amzn.to/3NDt7Yc
  47. Plant-Based Milk — 1 — (coffee creamer) — Laird Superfood Coconut Creamer: https://amzn.to/4fItA7A
  48. Plant-Based Milk — 2 — (plant milk) — Kiki Milk Organic Plant-Based Milk (original flavor): https://amzn.to/3AA6Qrt
  49. Plant-Based Milk — 3 — (soy milk) — West Soy Unflavored Unsweetened Organic Soy Milk: https://amzn.to/4dwev8l
  50. Salt — 1 — Jacobsen’s Sea Salt (Oregon, USA): https://amzn.to/4dcbk5L
  51. NEW! Salt — 2 —Maldon Sea Salt Flakes**: https://amzn.to/4iTzWTE
  52. NEW! Salt — 3 — Diamond Crystal Kosher Salt** : https://amzn.to/4cVQMiy
  53. Seeds — 1 — (chia) — Navitas Organic, Gluten-Free Chia Seeds (Mexico): https://amzn.to/3YvE7xC
  54. Seeds — 2 —  (hemp) — Costco Kirkland Organic Hemp Seeds: https://amzn.to/4e05RP9
  55. Supplement — 1 — (adult) — Clean Creatine (100% Creapure), Made in Germany (use with caution, please read article): https://amzn.to/43UjrS6
  56. Supplement — 2 — (adult) — Doctor’s Best Vitamin C with Q-C: https://amzn.to/4hlVvea
  57. Supplement — 3 — (adult) — Nature’s Way Zinc Lozenges: https://amzn.to/4liDz6f
  58. Supplement — 4 — (adult) — Nordic Naturals Omega-3 Fish Oil: https://amzn.to/48q1j2V
  59. Supplement — 5 — (adult) — Pectasol Modified Citrus Pectin, Formulated in the USA: https://amzn.to/3QUmZfN
  60. Supplement — 6 — (adult) — Pendulum Metabolic Daily Dietary Supplement: https://amzn.to/4gY5wOm
  61. Supplement — 7 — (adult) — Qwell Omega-3 by The Veggie Doctor, Vegan Algae DHA + EPA + DPA: https://amzn.to/45Lbosh
  62. Supplement — 8 — (kids) — Baby Ddrops, Organic Vitamin D3 Supplement for Babies: https://amzn.to/49C3ktH
  63. Supplement — 9 — (kids) — Mary Ruth’s Organic Toddler Multivitamin Liquid Drops with Iron: https://amzn.to/3YPhcgx
  64. Supplement — 10 — (kids) — Mary Ruth’s Organic Toddler Elderberry Liquid Drops: https://amzn.to/42617TU
  65. Supplement — 11  — (kids) — Nordic Naturals Kids Vitamin D3 Gummies (Ages 3+): https://amzn.to/4l7117a
  66. Sweetener — 1 — (sugar) — Anthony’s Organic Granulated Cane Sugar: https://amzn.to/4jf6vLv
  67. Sweetener — 2— (xylitol) — Espure Organic Xylitol: https://amzn.to/3GsCSrU
  68. Sweetener — 3— (xylitol) — Now Real Food Granulated Xylitol: https://amzn.to/4cNWDpM
  69. Toothpaste — 1 —  Aquafresh “FRESH & MINTY” Fluoride Toothpaste, Purchased in London, England (Made in U.K. or Slovakia) – https://amzn.to/4lhRMjO
  70. Toothpaste — 2 — Orajel Kids Training Toothpaste — Fluoride Free — in Natural Berry Fruity Flavor with Elmo Sesame Street packaging: https://amzn.to/41wxtrY
  71. Toothpaste — 3 — Miessence Fluoride-free Mint Toothpaste (AUSTRALIA): https://amzn.to/4bJc4PO
  72. Toothpaste — 4 — Dr. Brown’s Fluoride-free Baby Toothpaste in Strawberry Flavor: https://amzn.to/3DCehzZ
  73. Toothpaste — 5 — Pegciz Kids Foam Toothpaste in Watermelon Flavor, Low Flouride (packaging varies, see report): https://amzn.to/3YzP68e
  74. Toothpaste — 6 — Kid’s Spry Fluoride-free Tooth Gel with Xylitol in Original Flavor: https://amzn.to/41GZb4e
  75. Toothpaste — 7 — Essential Oxygen Fluoride-free  BR Certified Organic in Peppermint Flavor: https://amzn.to/4lARZ2J

**Lab reports pending/ Not yet published as of 6/29/2025

Here’s a link to our landing page featuring all the third-party lab reports for the foods, supplements, and cosmetic products we have published to date, including those listed above. This is a good page to bookmark as it is updated several times each week, as new lab reports are published: https://tamararubin.com/lab-reports/

Stand by for more!

BONUS: Below are SIX additional products that each tested positive for trace (very low levels of) Arsenic — at levels considered safe by all standards (with the limits of detection noted in the lab report for the specific product listed).

  1. Infant Formula — Kendamil Goat Toddler Milk, not organic (positive for traces of Arsenic): May be available at Target or through other online retailers of European infant formulas
  2. Ingredient — Maseca Instant Corn Masa Flour, Product of Mexico (positive for traces of Arsenic):  https://amzn.to/4iR8qWN
  3. Fruit Snack —  That’s It Apple Cherry Bars, not organic (positive for traces of Arsenic): https://amzn.to/4fHkSWV
  4. Oil — Chosen Foods 100% Pure Avocado oil, organic (postive for traces of Arsenic): https://amzn.to/3BVQYQa
  5. Supplement — (adult) —  Now Sunflower Lecithin, not organic (positive for traces of Arsenic): https://amzn.to/3AFdHzO
  6. Supplement — (adult) —  WishGarden Immune Boost Seasonal Rescue for Pregnancy: https://amzn.to/3Cd940N

Amazon links are affiliate links. 

Amazon links are affiliate links. If you purchase something after clicking on a Lead Safe Mama, LLC Amazon affiliate link, Lead Safe Mama, LLC may receive a percentage of what you spend at no extra cost to you.

Lab report for the product pictured above:

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