Cheat Sheet: Safer diapering

Why this page doesn't rank disposable brands

A diaper is against skin for hours a day, every day, for two to three years unless you're doing elimination communication — which is a real thing some parents do, and not a requirement for the rest of us. Most families use some combination of disposable and cloth, and the honest safety questions are different for each.

We're not ranking disposable brands here. Bleaching processes and additive formulas shift between production runs the same way sourcing does everywhere else in the gear category, and — more to the point — the differences between major disposable brands today are mostly about fragrance and lotion additives, not the chlorine or absorbent-gel questions that circulate online. What follows is what those questions actually resolve to, so you can evaluate any package in front of you.

Disposable diapers: what's actually in them now

Chlorine bleaching. Diaper pulp used to be bleached with elemental chlorine, which produced dioxins — a genuinely concerning byproduct — as a side effect. That process was phased out of the pulp and paper industry decades ago. The standard now is elemental chlorine free (ECF) bleaching, using chlorine dioxide instead of chlorine gas; it accounts for the large majority of bleached pulp worldwide and produces dioxin only at trace levels near the limit of detection. A smaller share of brands go further and use totally chlorine free (TCF) processes — oxygen, hydrogen peroxide, or ozone, no chlorine compound at any stage. Both are legitimate claims. A brand advertising "chlorine-free" as if it were unusual is describing standard industry practice, not a differentiator.

Sodium polyacrylate (SAP). This is the absorbent gel that lets a diaper hold many times its weight in liquid without leaking. It's FDA-approved as an indirect food additive and has a long safety-testing record for skin contact — the low-toxicity profile is well established when it stays inside the diaper. The realistic issue is a torn or overfilled diaper releasing loose gel beads onto skin, which isn't toxic at that level of exposure but is worth a wipe-down and a change rather than leaving it.

What's actually worth screening for. Given the above, the more legitimate thing to check on a disposable is synthetic fragrance — added to mask ammonia odor, not doing anything for absorbency, and sitting against skin for hours — and lotion or dye treatments on the topsheet, which are additional chemistry with no functional purpose. Fragrance-free and dye-free is the meaningful label to look for, more than a chlorine claim most brands already meet.

Cloth diapers: what the certifications actually check

Cloth sidesteps fragrance, lotion additives and SAP entirely, at the cost of more laundering and a fabric and outer-cover claim of its own to verify. Two certifications come up constantly on cloth diaper packaging, and they check different things:

OEKO-TEX Standard 100 tests the finished textile — the fabric, dyes, thread, elastic, snaps, everything that ends up in the final product — against several hundred regulated and unregulated substances, with the strictest limits reserved for products intended for children under three. It's a result, not a process claim: it doesn't say how the cotton was grown, only that the thing you're holding tested clean.

GOTS (Global Organic Textile Standard) certifies the growing and processing chain — that the fiber is organically grown, and that dyeing and finishing along the way met environmental and some chemical-safety criteria. It's a process claim, not a finished-product test in the way OEKO-TEX is.

A diaper can carry either certification, both, or neither. Neither one implies the other, and a package that just says "organic" or "non-toxic" with no certification mark attached is making a marketing claim, not a verified one — check for the actual OEKO-TEX or GOTS certificate.

The outer layer matters too. Cloth diaper covers are almost always PUL (polyurethane laminate) or TPU (thermoplastic polyurethane) — both standard, both fine. The thing worth knowing is that older or budget PUL sometimes used PVC-based waterproofing rather than polyurethane. A brand that states its cover is PVC-free is telling you something a silent one isn't.

What we'd actually check

Four things, and they are the whole list. Everything above this section exists to explain why these four and not the ones you usually see argued about:

• Fragrance-free and dye-free, stated on the package. The most avoidable thing in a disposable, and the one the package will actually tell you.
• For cloth: OEKO-TEX Standard 100 or GOTS certification — the certificate, not the words "organic" or "non-toxic" on a listing.
• For cloth: a PUL or TPU outer layer with a stated PVC-free claim. Both materials are standard; a brand that says PVC-free is telling you something a silent one isn't.
• No active recall on the pick.

Notice what is not on that list: the chlorine question and the absorbent-gel question, which are the two that dominate the internet on this subject and are, on a modern diaper, largely settled.

If you're going cloth: a starting point

If you're deciding to try cloth and want somewhere to start rather than a full comparison, the three below are in-stock pocket diapers from our own catalog — so the price and availability on each card are live rather than whatever was true when this page was written. None of them is a "winner" here. This page is about what to check, not which one to buy; if you want them ranked against each other on lining fabric, insert count and price per diaper, that comparison is a page of its own: Mama Koala vs. wegreeco vs. ALVABABY.

One thing to carry over from that page: none of the three publishes a third-party textile certification we could verify. That is an absence of a claim rather than a finding against them, and it is exactly the gap the second bullet above tells you to look for.

The realistic bottom line

Neither disposable nor cloth is a clean safety win over the other at this point. Modern disposables from major manufacturers aren't the chlorine-and-dioxin risk they were before the industry moved off elemental chlorine bleaching, and sodium polyacrylate has a solid track record for skin contact. Cloth removes fragrance, lotion additives and SAP from the equation, and gives you a fabric claim you can actually verify by certificate — but it comes with more laundering and its own PUL/TPU layer to check. For most households this ends up being a logistics and cost decision more than a safety one, and either can be done well or done carelessly.