Ingredient
Boric Acid
Boric Acid is flagged for pregnancy, breastfeeding, trying to conceive and postpartum. The concern behind the strongest flag is known teratogen and fetal development.
- Hydrogen Borate
- Boracic Acid
- Orthoboric Acid
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
Boric Acid and pregnancy
Not Recommended
- Known teratogen
- Fetal development
- Absorbed into the body
Boric acid is a boron compound used in cosmetics as an antimicrobial preservative and pH buffer. It can be absorbed through the skin, particularly through damaged or irritated skin, and accumulates in the body with repeated exposure. According to ECHA, boric acid is classified as Reproductive Toxicity Category 1B, meaning it is presumed to cause developmental toxicity in humans based on animal studies. Studies have shown that boron compounds can cross the placenta and affect fetal development, particularly skeletal and cardiovascular systems. ACOG guidelines recommend avoiding unnecessary exposure to reproductive toxicants during pregnancy. The European Commission's Scientific Committee on Consumer Safety states that the safe exposure level for reproductive effects is very low. Both EU regulations and medical guidance strongly advise pregnant women to avoid cosmetic products containing boric acid. While the concentration in cosmetics is limited, the cumulative effect from multiple products and the ingredient's reproductive toxicity classification warrant complete avoidance during pregnancy. Most obstetricians recommend checking product labels and choosing boric acid-free alternatives.
Boric Acid and breastfeeding
Not Recommended
- Passes into breast milk
- Infant exposure
- Absorbed into the body
Boric acid is an antimicrobial and buffering agent that can be absorbed through the skin into systemic circulation. The compound has documented ability to accumulate in body tissues with repeated exposure. According to toxicological studies, boron compounds including boric acid can be excreted in breast milk following systemic absorption. The AAD and lactation experts note concern because infants have limited ability to excrete boron efficiently, leading to potential accumulation. While topical cosmetic exposure results in lower systemic levels than oral intake, ECHA's reproductive toxicity classification (Category 1B) extends concerns to the breastfeeding period due to potential infant exposure through milk. Medical consensus recommends that breastfeeding mothers avoid cosmetic products containing boric acid, particularly those applied to large body areas or used frequently. The European Scientific Committee emphasizes that even low-level chronic exposure should be minimized during lactation. Most dermatologists and pediatricians suggest choosing preservative systems without boric acid until after weaning.
Boric Acid and postpartum
Caution Advised
- Absorbed into the body
- Irritant
For postpartum women who are not breastfeeding, boric acid in cosmetics presents lower risk than during pregnancy or breastfeeding, but some caution remains warranted. The reproductive toxicity concerns primarily relate to fetal development and infant exposure, which are not factors when not pregnant or breastfeeding. According to ECHA, while boric acid is classified as a reproductive toxicant, this classification focuses on developmental effects rather than ongoing fertility concerns in adults. However, the compound can still cause skin irritation and systemic absorption occurs with topical use. Postpartum skin may be more sensitive due to hormonal changes, potentially increasing absorption or irritation. For women planning future pregnancies, minimizing exposure to reproductive toxicants is generally advisable.
Boric Acid and trying to conceive
Not Recommended
- Absorbed into the body
- Builds up in tissue
- Fetal development
Boric acid is a boron compound classified by ECHA as a reproductive toxicant (Category 1B). For women trying to conceive, the concern relates to potential accumulation of the compound in body tissues before pregnancy is confirmed, as conception typically occurs 2-4 weeks before pregnancy is detected. According to ACOG guidelines and reproductive toxicology principles, it's advisable to avoid exposure to known developmental toxicants when trying to conceive. Boric acid can accumulate in the body with repeated exposure, and animal studies show effects on fetal development at relatively low doses. Most fertility specialists and obstetricians recommend following pregnancy precautions when actively trying to conceive, which means avoiding boric acid-containing cosmetics. The precautionary approach ensures no exposure during the critical early weeks of pregnancy when neural tube and organ development begins.
Boric Acid and PCOS
Safe to Use
- Irritant
Boric acid is an antimicrobial preservative and pH buffer with no known direct effects on androgen levels, insulin sensitivity, or other hormonal pathways relevant to PCOS. The ingredient functions as a preservative without hormonal activity. Women with PCOS often deal with acne and inflammatory skin conditions. While boric acid has antimicrobial properties that could theoretically help prevent bacterial growth, it's primarily used as a preservative rather than an active acne-fighting ingredient. According to dermatological literature, the low concentrations used in cosmetics are generally well-tolerated, though some individuals may experience mild irritation. There are no specific contraindications for using boric acid-containing cosmetics with PCOS. The reproductive toxicity concerns that apply during pregnancy are not relevant for non-pregnant women with PCOS. However, if you have particularly sensitive or inflamed skin common with PCOS, you might prefer gentler preservative systems to minimize any potential irritation.
Boric Acid and general use
Safe to Use
- Irritant
Boric acid is a naturally occurring boron compound used in cosmetics as an antimicrobial preservative and pH buffering agent. It helps prevent bacterial and fungal contamination in formulations while maintaining product stability. The ingredient is found in various personal care products including creams, lotions, and cleansers. According to ECHA, boric acid is classified as a reproductive toxicant, but this classification primarily concerns developmental effects during pregnancy rather than general toxicity in non-pregnant adults. At the low concentrations permitted in cosmetics (up to 3% in the EU), topical use by non-pregnant individuals presents minimal health risk. Some people may experience mild skin irritation, particularly with damaged skin or higher concentrations. The compound can be absorbed systemically, but typical cosmetic use results in low exposure levels. The EU Cosmetics Regulation restricts boric acid concentrations and requires warning labels. For the general adult population (non-pregnant, non-breastfeeding), occasional topical use at regulated concentrations is considered acceptable by most regulatory bodies. However, products should not be used on broken skin, and individuals with sensitive skin may want to patch test first.
Everything else flagged for the same profiles
Related ingredients
Ingredients suggested in place of Boric Acid, each one with its own page here.
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 .
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