Ingredient
Triphenyl Phosphate
Triphenyl Phosphate is flagged for pregnancy, breastfeeding, trying to conceive and PCOS. The concern behind the strongest flag is endocrine disruptor and fetal development.
- TPP
- Phosphoric Acid Triphenyl Ester
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
- 4 of 6
- Counting avoid, high risk and medium risk
- Irritancy
- 2 of 5
- Higher means more likely to sting or redden
Triphenyl Phosphate and pregnancy
Not Recommended
- Endocrine disruptor
- Fetal development
- Absorbed into the body
Triphenyl phosphate is an organophosphate compound used primarily as a plasticizer in nail products. It's part of a chemical class known for potential endocrine-disrupting properties. Studies have shown that TPP can be absorbed through skin and nails, with detectable levels found in urine after nail polish application. Research indicates TPP may interfere with thyroid hormone function and has shown developmental toxicity in animal studies. The first trimester, when fetal organs are forming, is particularly sensitive to endocrine disruption. According to toxicology research, organophosphates can cross the placental barrier. While not explicitly banned by ACOG, many obstetricians recommend avoiding organophosphate compounds during pregnancy due to their hormone-disrupting potential. The precautionary principle suggests limiting exposure to endocrine disruptors during pregnancy, especially those with demonstrated systemic absorption.
Triphenyl Phosphate and breastfeeding
Caution Advised
- Endocrine disruptor
- Absorbed into the body
Triphenyl phosphate is absorbed systemically through topical application, primarily from nail products. As an organophosphate, it raises concerns about potential transfer to breast milk. While specific studies on TPP in breast milk are limited, organophosphates are known to be fat-soluble and can accumulate in body tissues. The compound's endocrine-disrupting properties, particularly effects on thyroid hormones, raise theoretical concerns about infant exposure through breast milk. However, nail polish use typically involves small surface areas and limited duration of exposure compared to other sources. There is no explicit guidance from major medical organizations specifically about TPP during breastfeeding. However, many lactation consultants recommend minimizing exposure to known endocrine disruptors, especially in products used frequently or in well-ventilated areas to avoid inhalation exposure.
Triphenyl Phosphate and postpartum
Safe to Use
- Endocrine disruptor
For postpartum women not breastfeeding, the main concern with triphenyl phosphate is its potential endocrine-disrupting effects, though risks are lower without pregnancy or infant exposure considerations. TPP's systemic absorption and hormone effects are still present, but the critical windows of fetal development and infant exposure no longer apply. Use in well-ventilated areas and limiting frequency of application can minimize exposure concerns.
Triphenyl Phosphate and trying to conceive
Caution Advised
- Endocrine disruptor
- Fertility effects
Triphenyl phosphate's endocrine-disrupting properties raise theoretical concerns for women trying to conceive. Hormonal balance is crucial for ovulation and fertility, and exposure to compounds that interfere with reproductive hormones may be best minimized. While direct evidence linking TPP to fertility issues in humans is limited, animal studies have shown reproductive effects from organophosphate exposure. The precautionary approach suggests reducing exposure to endocrine disruptors during the preconception period, particularly since TPP accumulates in the body and early pregnancy exposure could occur before pregnancy is detected.
Triphenyl Phosphate and PCOS
Caution Advised
- Endocrine disruptor
- Interferes with hormones
Triphenyl phosphate is an endocrine-disrupting chemical that has been shown to interfere with hormone signaling pathways. For women with PCOS, who already have hormonal imbalances, exposure to additional endocrine disruptors is a concern. Research indicates TPP can affect thyroid hormone function and may influence reproductive hormone pathways. Women with PCOS often have co-existing thyroid issues and are particularly sensitive to endocrine disruption. While cosmetic exposure alone is unlikely to cause PCOS or worsen symptoms significantly, minimizing exposure to known hormone disruptors is generally recommended. There are no specific studies on TPP and PCOS, but endocrinologists generally advise women with hormonal disorders to reduce exposure to endocrine-disrupting chemicals where possible. Many women with PCOS choose 'free-from' nail products that exclude organophosphates.
Triphenyl Phosphate and general use
Safe to Use
- Endocrine disruptor
- Irritant
Triphenyl phosphate is a plasticizer commonly found in nail products. For the general population, exposure is typically limited and intermittent. TPP has been identified as a potential endocrine disruptor, and biomonitoring studies have found it in urine samples from people using nail products. However, for individuals without hormonal sensitivities or reproductive concerns, occasional use in well-ventilated areas poses low risk. Some people may experience nail or skin irritation from direct contact. Many cosmetic brands have moved toward 'free-from' formulations that exclude TPP and similar organophosphates in response to consumer concerns. While not banned, awareness of TPP's presence in products allows consumers to make informed choices about exposure.
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.
Download on theApp Store