Important Update on Colgate Watermelon Burst Toothpaste Testing Results

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Published April 17, 2025 — Thursday

A Personal Message from Tamara Rubin:

Regrettably, the Colgate Watermelon Burst Toothpaste containing fluoride has tested positive for unsafe levels of both Lead and Mercury. This finding aligns with our previous testing of another Colgate product, which you can view here. The shared ingredient among these products that raises concern is Hydrated Silica. Based on our extensive testing of various toothpastes, Hydrated Silica appears to be a significant indicator of potential Lead contamination. For reference, you can see additional examples of contaminated toothpaste containing Hydrated Silica on our comprehensive toothpaste contamination chart.

The test results are particularly disheartening to me personally, as I previously used this product with my children during their early years. It’s important to note that the detected levels of Lead and Mercury are within the legal limits — the federal thresholds for Lead are 10,000 parts per billion (ppb) in fluoride-free toothpaste and 20,000 ppb in fluoride-containing varieties. However, all relevant health authorities agree that there is no safe level of Lead exposure, especially for children. Our mission at Lead Safe Mama, LLC is to advocate for safer, cleaner products and to hold brands accountable, especially those marketed directly to children.

Given that children often swallow toothpaste, the presence of heavy metals in popular, mainstream products raises significant health concerns. Through our community-driven laboratory testing initiative, we’ve identified five toothpaste options that tested as non-detect for heavy metals, with detection limits noted in each lab report. These safer choices are linked on our toothpaste chart landing page and listed below for your convenience.

If you suspect that your health may have been affected by using this product, I encourage you to read the article linked here. The following resources may also be helpful:

  • Information about Blood Lead Testing
  • Information about Urine Heavy Metals Testing
  • Guidelines on Natural Food-Based Detox Protocols
  • A list of 68 Safer Products identified through our testing initiative
  • Access to All Laboratory Reports published by Lead Safe Mama, LLC to date (over 350)

The comprehensive original lab report for this product is included at the bottom of this article. Please scroll down to review it.

For guidance on safer food, supplement, and cosmetic options—including toothpastes and personal care items—we maintain several curated lists on our Food & Supplement Testing Landing Page. We also feature a dedicated list of Safer Snack Choices. Stay informed by visiting our latest updated list of 68 lab-tested safer products, which can be accessed via our main Lab Reports Landing Page. Bookmark this page for ongoing updates, as new reports are added regularly. Support our independent, community-funded testing efforts by visiting our GoFundMe Campaigns.

Introduction for New Visitors:

Tamara Rubin is a dedicated advocate for preventing childhood Lead poisoning, a filmmaker, and a mother whose own children suffered from Lead poisoning in 2005. She owns and operates Lead Safe Mama, LLC—a woman-owned small business committed to consumer safety and Lead poisoning prevention.

  • Since July 2022, Lead Safe Mama, LLC has contributed to six product recalls involving FDA and CPSC.
  • All published test results are scientifically verified, accurate, and reproducible.
  • Visit our Press Page to see media coverage of our work.

This is an ad-free, independent article.

Our work relies on advertising, affiliate links, and reader support to cover operational costs. To help us maintain our ad-free environment and continue testing, consider making a donation or subscribing via Patreon. All new lab reports are shared first on Patreon, where you can join for free or support our mission financially.

Safer Product Highlights:

Below is an expanded list of products that have tested non-detect for heavy metals—including Lead, Mercury, Cadmium, and Arsenic—through independent, third-party, community-supported laboratory testing conducted by Lead Safe Mama, LLC. These examples demonstrate that safer manufacturing is achievable. Detection limits for each test are detailed in the respective lab reports. To access the original reports, enter the product’s brand name into our website’s search bar or visit the Lab Testing Landing Page.

Updated List as of April 8, 2025 — Now Featuring 62+ Safer Products, Plus 6 Bonus Options:

  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: Link
  7. Beverage – 2: Olipop Grape Tonic: Link
  8. Breakfast Item – 1: Nature’s Path Envirokidz Organic Panda Puffs: Link
  9. Breakfast Item – 2: Nature’s Path Envirokidz Organic Corn Puffs Gorilla Munch: Link
  10. Breakfast Item – 3: One Degree Organic Gluten-Free Sprouted Rolled Oats (Canada): Link
  11. Candy – 1: Lindt White Chocolate Bar (Made in USA, New Hampshire): Link
  12. Candy – 2: Cavendish & Harvey Wild Berry Drops (Germany): Link
  13. Coffee & Tea – 1: Chameleon Handcrafted Organic Cold Brew Concentrate: Link
  14. Coffee & Tea – 2: Tao of Tea Organic Genmaicha (from Japan, sold locally in Portland): Link
  15. Coffee & Tea – 3: Califia Farms Almond Latte Cold Brew (XX Espresso): Link
  16. Coffee & Tea – 4: Death Wish Organic Espresso Roast Ground Coffee (Multi-country origin): Link
  17. Coffee Creamer – Plant-Based: Laird Superfood Coconut Creamer: Link
  18. Coffee Creamer – Dairy: Organic Valley Grassmilk Half and Half: Link
  19. Dairy & Cheese: Babybel Mini Original Snack Cheese: Link
  20. Fruit Snack – 1: GoGo Squeez Organic Apple Sauce Pouch: Link
  21. Fruit Snack – 2: Kirkland Organic Apple Sauce Pouch (Costco): Link
  22. Fruit Snack – 3: Pure Organic Layered Fruit Bars (Strawberry Banana): Link
  23. Fruit Snack – 4: Once Upon A Farm Dairy-Free Strawberry Banana Swirl Fruit Smoothie Pouch: Link
  24. Fruit Snack – 5: Pure Organic Layered Fruit Bars (Raspberry Lemonade): Link
  25. Infant Formula – 1: Bobbie Organic Gentle Infant Formula (Pink & White Can): Link
  26. Infant Formula – 2: Bobbie Organic Infant Formula (Green & White Can): Link
  27. Infant Formula – 3: Bobbie Grass-Fed Milk-Based Powder with Iron (Green Can): Link
  28. Infant Formula – 4: ByHeart Infant Formula (US-made, non-organic): Link
  29. Infant Formula – 5: HiPP Bio Combiotik Infant Formula (Stage 1): Link not available on Amazon
  30. Infant Formula – 6: HiPP HA Stage PRE (0+ Months) (imported): Link not available on Amazon
  31. Infant Formula – 7: Holle Bio Goat Stage 2 Infant Formula (organic, European): Link
  32. Infant Formula – 8: Kendamil Goat Infant Formula (non-organic): Available at Target
  33. Infant Formula – 9: Kendamil Organic Follow-On Milk (European, Cow Milk): Available at Target
  34. Infant Formula – 10: Kendamil Whole Milk Infant Formula (Europe, pink can): Available at Target
  35. Infant Formula – 11: Kendamil Organic Infant Formula (Cow Milk): Available at Target
  36. Ingredient – 1: Jacobsen’s Sea Salt (Oregon, USA): Link
  37. Ingredient – 2: Maldon Sea Salt Flakes: Link
  38. Ingredient – 3: Jovial Organic Einkorn Flour (Italy): Link
  39. Ingredient – 4: Costco Kirkland Organic Hemp Seeds: Link
  40. Ingredient – 5: Navitas Organic Gluten-Free Chia Seeds (Mexico): Link
  41. Ingredient – 6: Napa Valley Naturals Organic Red Wine Vinegar (California): Link
  42. Ingredient – 7: Jovial Organic Chickpeas (Italy): Link
  43. Ingredient – 8: Anthony’s Organic Granulated Cane Sugar: Link
  44. Oil – 1: Chosen Foods 100% Avocado Oil (non-organic): Link
  45. Oil – 2: Dr. Adorable’s Organic Perilla Seed Oil (Korea): Link
  46. Oil – 3: Dr. Bronner’s Regenerative Organic Coconut Oil: Link
  47. Plant-Based Milk – 1: Kiki Milk Organic Plant-Based Milk (original flavor): Link
  48. Plant-Based Milk – 2: West Soy Unflavored Unsweetened Organic Soy Milk: Link
  49. Supplements – 1: Baby Ddrops Organic Vitamin D3 for Babies: Link
  50. Supplements – 2: Doctor’s Best Vitamin C with Q-C: Link
  51. Supplements – 3: Mary Ruth’s Organic Toddler Multivitamin Drops with Iron: Link
  52. Supplements – 4: Mary Ruth’s Organic Toddler Elderberry Drops: Link
  53. Supplements – 5: Nordic Naturals Omega-3 Fish Oil: Link
  54. Supplements – 6: Nordic Naturals Kids Vitamin D3 Gummies (Ages 3+): Link
  55. Supplements – 7: Pectasol Modified Citrus Pectin: Link
  56. Supplements – 8: Pendulum Metabolic Daily Dietary Supplement: Link
  57. Cosmetic – 1: Kora Organics Noni Face Oil: Link
  58. Toothpaste – 1: Orajel Kids Natural Berry Fruity Fluoride-Free Toothpaste (Elmo Sesame Street Packaging): Link
  59. Toothpaste – 2: Miessence Mint Toothpaste (Fluoride-Free): Link
  60. Toothpaste – 3: Dr. Brown’s Fluoride-Free Strawberry Toothpaste: Link
  61. Toothpaste – 4: Pegciz Kids Watermelon Foam Toothpaste (Low Fluoride): Link
  62. Toothpaste – 5: Kid’s Spry Tooth Gel with Xylitol (Original Flavor): Link

Note: Lab results for some products are pending or not yet published as of April 8, 2025. You can view all third-party lab reports for tested foods, supplements, and cosmetics at this link. Stay tuned for updates!

Additional Safer Options & Trace Arsenic Findings

Below are six additional products that, while tested positive for trace Arsenic, fall within levels considered safe by all standards—detection limits are specified in each report:

  1. Ingredient: Maseca Instant Corn Masa Flour (Mexico): Link
  2. Infant Formula: Kendamil Goat Toddler Milk (non-organic): Available at Target or other European formula retailers
  3. Fruit Snack: That’s It Apple Cherry Bars (non-organic): Link
  4. Oil: Chosen Foods 100% Pure Avocado Oil (organic): Link
  5. Supplement: Now Sunflower Lecithin (non-organic): Link
  6. Supplement: WishGarden Immune Boost Seasonal Rescue: Link

Note: Amazon affiliate links are used; purchases through these links support our nonprofit work at no extra cost to you.

Full Lab Report for the Product Shown Above:

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