Ingredient
Chlorine
Chlorine is flagged for pregnancy, breastfeeding, postpartum, trying to conceive, PCOS and general use. The concern behind the strongest flag is irritant and absorbed into the body.
- Cl
- Chlorine gas
Verdict by profile
Truva checks every ingredient against six profiles. Jump to any of them for the full assessment.
- Strongest verdict
- Not Recommended
- Its verdict for pregnancy, the profile this one is worst in
- Profiles flagged
- 6 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 5 of 5
- Higher means more likely to sting or redden
Chlorine and pregnancy
Not Recommended
- Irritant
- Absorbed into the body
Elemental chlorine is a toxic, highly reactive gas that should not be present as an ingredient in cosmetic products. If this appears on a product label, it likely refers to chlorinated water or a chlorine-containing compound rather than pure chlorine gas. Exposure to chlorine gas can cause severe respiratory irritation, chemical burns, and potential systemic toxicity. While swimming in chlorinated pools is generally considered safe during pregnancy (as chlorine is diluted and exists as hypochlorous acid, not elemental chlorine), direct exposure to chlorine gas or highly concentrated chlorine is dangerous for anyone, especially pregnant women. ACOG does not provide guidance on elemental chlorine in cosmetics because it is not a cosmetic ingredient. If you see 'chlorine' listed as an ingredient, contact the manufacturer for clarification, as this is highly unusual and potentially concerning. Products should not contain elemental chlorine.
Chlorine and breastfeeding
Not Recommended
- Irritant
Elemental chlorine is not a cosmetic ingredient and should not appear in personal care products. It is a toxic gas that causes severe irritation and chemical injury. If 'chlorine' appears on a cosmetic product label, this requires clarification from the manufacturer, as it may be mislabeled or refer to a chlorinated compound. Breastfeeding mothers should avoid any product claiming to contain elemental chlorine. Swimming in chlorinated pools is generally safe during breastfeeding, but direct exposure to chlorine gas or concentrated chlorine solutions is hazardous and not relevant to cosmetic use. Verify product ingredients with the manufacturer if chlorine is listed.
Chlorine and postpartum
Not Recommended
- Irritant
Elemental chlorine should not be used in cosmetic products. It is a hazardous chemical that causes severe skin and respiratory irritation. If you encounter a product listing 'chlorine' as an ingredient, contact the manufacturer for clarification or avoid the product. Properly formulated cosmetics do not contain elemental chlorine.
Chlorine and trying to conceive
Not Recommended
- Irritant
Elemental chlorine is a toxic gas that is not used in cosmetic formulations. If you see this listed as an ingredient, contact the product manufacturer or avoid the product. Women trying to conceive should use products with clear, safe ingredient lists. Elemental chlorine is not appropriate for cosmetic use and its presence on a label suggests mislabeling or confusion with chlorinated compounds.
Chlorine and PCOS
Not Recommended
- Irritant
Elemental chlorine is not used in cosmetics and is a toxic irritant. Any product claiming to contain chlorine as an ingredient should be avoided or clarified with the manufacturer. Women with PCOS should avoid products with questionable or potentially hazardous ingredients. Chlorine gas is not suitable for cosmetic use regardless of health status. If 'chlorine' appears on a label, it may be a labeling error or refer to chlorinated water used in manufacturing. Seek products with clear, properly labeled ingredients.
Chlorine and general use
Not Recommended
- Irritant
Elemental chlorine is a toxic, greenish-yellow gas that is highly reactive and corrosive. It is not used as an ingredient in cosmetic products and should never appear in properly formulated personal care items. Chlorine gas causes severe irritation to the respiratory system, eyes, and skin, and can result in chemical burns. OSHA requires strict safety protocols for industrial chlorine handling. While chlorinated compounds (like sodium hypochlorite in diluted bleach) have specific uses, elemental chlorine gas is hazardous. If 'chlorine' appears on a cosmetic product label, this is highly unusual and requires clarification. It may indicate a labeling error, refer to chlorinated water used in processing, or suggest poor quality control. The EU Cosmetics Regulation and FDA do not approve elemental chlorine for cosmetic use. Avoid products with unclear or suspicious ingredient listings.
Everything else flagged for the same profiles
Related ingredients
Ingredients that raise the same concerns.
Where this came from
Truva summarises published guidance from bodies including ACOG, the FDA, the EU SCCS and the Cosmetic Ingredient Review. It has no access to your medical history and it is not a substitute for your doctor, dermatologist or midwife. These assessments have not been reviewed by a clinician, and nothing here is a diagnosis or a prescription. If you are pregnant, breastfeeding or being treated for PCOS, take the ingredient list to the person looking after you.
Assessment last pulled from the ingredient database on .
One ingredient is the easy case.
A label has thirty of them. Truva reads the whole list at once and answers for the profile you set: pregnancy, breastfeeding, postpartum, trying to conceive, PCOS, or general use.
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