Talc powder is not considered fully safe. In 2024, the International Agency for Research on Cancer (IARC) classified talc as “probably carcinogenic to humans,” its second-highest level of certainty that a substance can cause cancer. The concerns center on two separate issues: asbestos contamination in some talc deposits and talc’s own potential to increase cancer risk even when pure.
Why Talc and Asbestos Are Connected
Talc is a naturally occurring mineral mined from underground deposits, and its safety depends partly on where it comes from. Talc that forms through a process called regional or contact metamorphism, where rock is transformed by extreme heat and pressure, consistently contains amphibole minerals, some of which are asbestiform (fibrous and structurally similar to asbestos). Talc formed by a different process, where hot silica-rich fluids alter surrounding rock at lower temperatures, consistently lacks these amphibole minerals.
This means some talc deposits are naturally intertwined with asbestos fibers, and separating the two during mining and processing has been a persistent challenge. The type of contamination isn’t always obvious without specialized testing, and for decades, cosmetic products containing talc were not required to undergo any asbestos testing before reaching store shelves.
The Ovarian Cancer Link
The most studied health concern involves women who regularly applied talc powder to the genital area. A systematic review and meta-analysis published in the Journal of General Internal Medicine found that frequent perineal use of talcum powder was associated with a 31% to 65% increased risk of ovarian cancer. The pooled odds ratio across studies was 1.47, meaning regular users were roughly 1.5 times more likely to develop ovarian cancer compared to non-users. That finding held up across both case-control studies and cohort studies, and remained stable when researchers excluded lower-quality studies from the analysis.
This is the evidence that led IARC’s panel of 29 international experts to their 2024 classification. They cited limited but consistent evidence of ovarian cancer in humans, sufficient evidence of cancer in animal studies, and strong mechanistic evidence that talc exhibits key characteristics of carcinogens at the cellular level. “Limited evidence” in IARC terminology doesn’t mean weak; it means the association is observed but other explanations can’t be completely ruled out.
Inhalation Risks
Breathing in talc powder carries its own set of dangers, separate from cancer. Applied to the skin, talc is generally harmless. But when airborne particles are inhaled, the health effects range from minor coughing and sneezing to serious respiratory distress. In cases of heavy accidental inhalation, the lungs can develop widespread inflammation, fluid buildup, and acute injury. Reported mortality in severe cases of talc lung toxicity has ranged from 20% to 33% in published case series.
Long-term, repeated inhalation can cause a condition called pulmonary talcosis, characterized by chronic bronchitis, scarring of lung tissue, and the formation of small inflammatory nodules called granulomas. When the talc is contaminated with silica or asbestos, the resulting lung disease mirrors silicosis or asbestosis, both serious and irreversible conditions. This is why the inhalation risk is particularly relevant for babies, whose airways are much smaller and who can’t move away from a cloud of powder shaken near their face.
What Pediatricians Recommend
The American Academy of Pediatrics is direct: avoid using baby powder. Their guidance notes that talc-based baby powder can contain asbestos fibers, and because labeling does not indicate whether asbestos-like fibers are present, parents should not use talc-containing products on infants or children. Breathing in even a single large exposure, such as powder accidentally spilling near a baby’s face, can cause severe lung disease.
How the FDA Regulates Talc
Cosmetic products in the United States, including talc-based powders, do not require FDA review or approval before going on the market. This is a gap that has allowed products to be sold for decades without mandatory asbestos testing. The Modernization of Cosmetics Regulation Act of 2022 gave the FDA new authority to address this, and in December 2024, the agency proposed a rule to establish standardized testing methods for detecting asbestos in talc-containing cosmetics. As of now, however, those regulations are not yet finalized, and the FDA states it does not currently have formal recommendations in place.
When the FDA has tested talc products itself, it has used polarized light microscopy and transmission electron microscopy to look for asbestos fibers. But these are agency-initiated spot checks, not routine requirements for manufacturers.
The Legal Fallout
The gap between what companies knew and what consumers were told has driven one of the largest product liability campaigns in history. Johnson & Johnson has paid out billions in settlements and verdicts to people who developed cancer after long-term use of their talc-based baby powder. Individual verdicts have been striking: $1.5 billion to a Maryland woman who developed mesothelioma (a cancer strongly linked to asbestos exposure), nearly $1 billion to the family of a California grandmother with mesothelioma, and $40 million to two women diagnosed with ovarian cancer after decades of use. A $700 million multistate settlement resolved claims that the company misled consumers about product safety.
The average talcum powder lawsuit settlement ranges from hundreds of thousands of dollars to over $1 million, with mesothelioma cases typically exceeding $1 million. These legal outcomes reflect juries repeatedly concluding that the companies involved knew about contamination risks and failed to warn consumers.
The Industry Shift to Cornstarch
Johnson & Johnson switched its baby powder formula from talc to cornstarch in the U.S. and Canada in 2020, then ended global sales of talc-based baby powder in 2023. Production of the talc-based product wound down by the first quarter of 2023, with remaining inventory sold through by retailers as the company scaled up its cornstarch supply. Other manufacturers have followed a similar path, and cornstarch-based powders now dominate the baby powder market.
Cornstarch does not carry the same contamination risks as talc, since it’s derived from corn rather than mined from the earth. It also doesn’t share talc’s association with ovarian cancer. For people who want the moisture-absorbing function of body powder, cornstarch-based products are the most straightforward alternative.
Where Talc Still Shows Up
Even with baby powder reformulations, talc remains a common ingredient in other cosmetics and personal care products. It’s widely used in eyeshadows, blushes, foundations, deodorants, and some dry shampoos. On ingredient labels, it typically appears simply as “talc” or sometimes “talcum.” If you’re looking to avoid it, checking the ingredient list is the most reliable approach, since products don’t have to carry front-of-package warnings about talc content. Cosmetic-grade talc is also used in some pharmaceutical tablets as a coating agent, though the exposure from swallowing a smooth tablet is very different from applying loose powder to skin or inhaling it.