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Guide · 6 min read

Hello Bello vs Millie Moon Diapers: What Each Brand Says About Its Diapers

Published October 18, 2026 by MetricPoint

Hello Bello vs Millie Moon diapers compared from each brand's own claims: fragrance, lotion, latex, materials and certifications, and what is not independently tested.

Quick answer: Both brands say their diapers have no lotion, latex or fragrance. Hello Bello emphasizes plant-based materials and cleaner ingredients, and Millie Moon lists Dermatest, Oeko-Tex, vegan and cruelty-free certifications and up to 12 hours of absorbency. We have not tested either, so treat this as a comparison of claims and pick on fit, leaks and your baby's skin.

Hello Bello and Millie Moon are both positioned as gentler, lower-price alternatives to the big diaper brands. This guide compares what each brand says on its own pages and what retailers list, and flags what is not independently verified. It is general information, not medical advice.

Side by Side: What Each Brand Says

Hello BelloMillie Moon
Lotion, latex, fragranceA BabyGearLab review of the Premium diaper lists no chlorine processing, artificial fragrance, phthalates, parabens, lotion or latexIts page says no lotions, latex and fragrances in the range
MaterialsSays it favors renewable, plant-based ingredients over petroleum-based ones; the review lists plant-derived PLA fibre among synthetic materials and puts the plant-based share at 23 percent or more by weightSays it uses an enhanced fiber blend and a high-GSM topsheet; a retail listing lists fluff pulp, superabsorbent polymer, polyethylene, polypropylene, polyethylene terephthalate, hydrocarbon resin, styrene-butadiene copolymer and spandex
Skin claimsDescribes cleaner, gentler ingredients that are dermatologist tested; a retailer repeats that it is working toward Non-GMO Project verificationDermatologically tested; Dermatest seal for free from contact skin allergens and reactors in sensitised volunteers; Oeko-Tex certified; does not use the word hypoallergenic
AbsorbencySuperior absorbency and leak protection, with no hours statedUp to 12 hour absorbency, with an asterisk that has no footnote on the page
OtherMade in the USA; "No Bad Stuff" without an explanation on the pageSustainably sourced, cruelty free and vegan
From each brand's own pages and the sources named in the table; none of it is independent testing. Formulas change, so check the current product page.

What Is and Is Not Verified

  • These are brand claims. We have not tested leaks, softness or ingredients, and neither page we read lists full material percentages.
  • Hello Bello says every product page lists the full ingredients, so check the product page for your size and line.
  • Millie Moon's ingredients list comes from a retailer listing and may not match the current pack.
  • Words such as clean, gentle and no bad stuff are not defined terms, so look for the specific exclusions instead.

How to Choose

  • Buy one small pack first. Fit, leaks and your baby's skin matter more than label claims.
  • If your baby has sensitive skin or eczema, ask your pediatrician which diaper to try.
  • For rash, the AAP advises frequent changes, a highly absorbent diaper, patting dry and a zinc oxide or petrolatum barrier ointment.
  • Compare cost per diaper, not per pack, and check the size range.

For more on diaper ingredients, see our guide to are diapers toxic. LabelBaby scans baby food and product labels, and it is a mobile app that is coming soon. This guide is general information, not medical advice.

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Frequently asked questions

Which is better, Hello Bello or Millie Moon?

We have not tested either diaper, so we cannot rank them on leaks or comfort. Compared on what each brand says, both state their diapers have no lotion, latex or fragrance, Millie Moon lists Dermatest, Oeko-Tex and vegan and cruelty-free certifications, and Hello Bello stresses plant-based materials. Choose by fit, leaks and your baby's skin.

Are Hello Bello diapers plant-based?

Hello Bello says it favors renewable, plant-based ingredients over petroleum-based ones. A BabyGearLab review of the Premium diaper says it is at least 23 percent plant-based by weight and lists synthetic materials such as superabsorbent polymer and polypropylene alongside plant-derived fibres. Check the product page for the current ingredients.

What are Millie Moon diapers made of?

Millie Moon says it uses an enhanced fiber blend and a high-GSM topsheet and has no lotions, latex or fragrances. A Stop & Shop retail listing lists fluff pulp, superabsorbent polymer, polyethylene, polypropylene, polyethylene terephthalate, hydrocarbon resin, styrene-butadiene copolymer and spandex.

Are they hypoallergenic?

Millie Moon's page does not use the word hypoallergenic. It describes its diapers as dermatologically tested and says the Dermatest seal certifies them as free from contact skin allergens and reactors in sensitised volunteers in controlled testing. Hello Bello describes its ingredients as cleaner and gentler and dermatologist tested.

Do diapers cause rash?

Diaper rash has many causes, and the AAP advises frequent changes, a highly absorbent diaper, letting the skin air-dry and a zinc oxide or petrolatum barrier ointment. If a rash does not improve in two to three days, call your pediatrician.

Can LabelBaby scan a diaper label?

LabelBaby scans baby food and product labels, and it is a mobile app that is coming soon. Diapers often list few ingredients on the pack, so check the brand's product page too.