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Plant-based, Sustainable, Quality Diapers

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Disposable Cotton Diapers

Premium Plant-Based, Sustainable, Non-Toxic Diapers

Soft, breathable, and gentle on skin—let your baby enjoy the natural comfort of cotton. While our diapers include some synthetic materials for performance, they feature a 100% cotton liner, outer cover, and inner absorbent layer, for reliable leak protection and lasting dryness.

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Nontoxic Cotton Diapers vs. Bamboo or Plastic Diapers

Cotton's natural properties make it the superior choice for nontoxic diapers. Unlike synthetic materials that can irritate sensitive skin, cotton works with your baby's natural skin function to promote healthy airflow and efficient moisture management. Our patent-pending technology maximizes cotton's benefits, while maintaining the performance parents expect from premium disposable diapers.

  • Cotton Nontoxic Diapers:

    • 100% breathable and hypoallergenic
    • #1 doctor-recommended material for sensitive skin
    • Naturally antimicrobial and moisture minimizing
    • Biodegradable within months, not centuries
    • Minimal processing with no harsh chemicals
    • Sustainable single-season growing cycle

  • Plastic Diapers:

    • May contain harmful chemical agents
    • May cause contact dermatitis in babies with sensitive skin
    • Can trap heat and moisture, leading to rashes
    • Take 500+ years to decompose in landfills
    • Petroleum-based materials with high environmental impact

  • Bamboo Diapers:

    • Requires intensive chemical processing with toxic substances
    • Typically processed and softened with toxic solvents
    • Frequently blended with synthetic fibers that reduce biodegradability
    • Environmental concerns lead many eco-conscious clothing brands to avoid bamboo
    • Requires 5-7 years to mature before harvesting

What's NOT in Our Nontoxic Diapers

  • FOREVER CHEMICAL FREE

  • NO HARSH CHEMICALS

  • ELEMENTAL CHLORINE-FREE (ECF) WOOD PULP

  • MINIMAL PLASTIC CONTENT
    less than 10% of total diaper*

Why Choose Cottonsie Nontoxic Diapers?

  • Pure Materials

    Made with 100% cotton in the inner liner, outer cover, and ADL, with 65% plant-based content and less than 10% plastic—for a cleaner, more natural diaper.

  • Science-Driven Innovation

    Founded by a polymer and textile chemist, Cottonsie® is independently tested for safety, absorbency, and performance—delivering up to 12 hours of leak protection and exceptional breathability.

  • Safe, Gentle, and Transparent

    Hypoallergenic, nontoxic, elemental chlorine-free, and made with no dioxins, fragrances--or greenwashing.

What Our Customers Say

Discover why parents are switching to our premium baby care products

Rachel Angela Sara W.
★ ★ ★ ★ ★

The best diapers on the market

"My baby has extremely sensitive skin. Because of this, we switched to reusable diapers. Then, a friend gave me a bag of Cottonsie diapers, and they have been life-changing! They work great! No leaks, No rash! The only change I would make would be to have found them sooner!"

— Rachel

★ ★ ★ ★ ★

Game changer for sensitive skin

"We've been using the diapers and we LOVE them! They were great for her diaper rash, it went away."

— Angela

★ ★ ★ ★ ★

Worth every penny

"I tried the Cottonsie Cotton Diapers and they are GREAT!!!! They are so soft and I like that they don’t have all the prints on them. They also fit better around my little boy’s legs than most other diapers. I have tried lots of different diapers and the leg fit is better on these."

— Sara W.

Frequently Asked Questions

What diapers are the least toxic?

The least toxic diapers are made from natural materials like cotton, and are free from harmful chemicals, fragrances, and toxic additives. Look for brands that use 100% cotton liners, minimize the use of plastic, and provide transparent ingredient lists.

Which is the safest diaper for a baby?

The safest diapers feature natural cotton liners, are free from phthalates, parabens, and synthetic fragrances, and have hypoallergenic properties. Cotton-based diapers like Cottonsie® offer the gentlest option for sensitive skin while maintaining superior absorbency and leak protection.

Do Cottonsie® diapers have a wetness indicator?

No. Cottonsie® does not currently include a wetness indicator, as most rely on harsh chemicals and dyes that can irritate sensitive skin and may pose long-term health risks. We are actively researching safer, non-toxic alternatives, but until a truly gentle solution is found, we’re choosing to leave them out—staying true to our commitment to natural, skin-friendly materials.

Are Cottonsie® diapers suitable for sensitive skin or eczema?

Absolutely. Cottonsie® nontoxic diapers are suitable for babies with sensitive skin conditions, including eczema. Our 100% cotton liner is exceptionally gentle, breathable, and hypoallergenic—making it an ideal choice for babies who may react to synthetic materials, fragrances, or harsh chemicals commonly found in conventional diapers.

How are your diapers made?

Cottonsie® diapers are proudly made with responsibly sourced materials and ethical manufacturing practices. Our production partners ensure quality control while supporting practices that reduce our carbon footprint.
What diapers are the least toxic?