Spray tanning is generally considered low-risk while breastfeeding. The active ingredient in spray tans, DHA (dihydroxyacetone), absorbs very poorly through the skin, with less than 1% reaching the bloodstream in lab models. That means only trace amounts could theoretically make it into breast milk. The main precaution is keeping the product off your nipples and areolas so your baby doesn’t ingest it directly during nursing.
How DHA Interacts With Your Skin
DHA works by reacting with dead skin cells in the outermost layer of skin, called the stratum corneum. This reaction produces the brown color you see after a spray tan. The key detail for breastfeeding parents: DHA largely stays in that outer layer. According to data from the European Commission’s Scientific Committee on Consumer Safety, only about 1.79% of applied DHA was found in the stratum corneum itself, roughly 5% reached the deeper epidermis, and just 0.42% made it to the dermis below that. Almost none crosses into the bloodstream.
Because so little DHA penetrates beyond the skin’s surface, the National Institutes of Health notes that only small amounts would be expected to reach breast milk. There are no direct studies on sunless tanners during breastfeeding specifically, but the extremely low absorption rate is reassuring. La Leche League International also states that DHA cannot absorb beyond the outermost skin layer and therefore cannot contaminate breast milk.
The Real Concern: Inhalation
The bigger safety question with spray tans isn’t skin absorption. It’s breathing in the mist. The FDA has approved DHA for topical use at concentrations up to 20%, but has issued warnings against inhaling DHA or letting it contact mucous membranes (eyes, nose, mouth) during spray tanning. The European Union Regulatory Commission calculated that inhalation exposure during a single spray tan session ranges from 0.21 to 0.6 milligrams, and research published in Toxicology Reports found that the effects of inhaling DHA are still poorly understood.
This concern applies to everyone, not just breastfeeding parents, but it’s worth taking seriously when you’re nursing. If you opt for a professional spray tan, choose a salon that offers protective measures like nose filters, lip balm barriers, and eye protection. Some booths have better ventilation than others, so ask about airflow. Holding your breath during each pass of the spray gun also helps reduce how much mist you inhale.
Keeping Product Away From Your Breasts
The most practical step you can take is avoiding spray tan solution on your breasts entirely. La Leche League Canada specifically recommends keeping these products off your nipples and areolas so your baby doesn’t accidentally ingest any during feeding. If you’re getting a professional spray tan, let the technician know you’re breastfeeding so they can skip or cover that area.
Some options for protecting the breast area include wearing small adhesive nipple covers (sometimes called “tanning stickies”), applying a barrier cream to your nipples and areolas before the session, or simply asking the technician to avoid spraying your chest. If any solution does get on your breasts, wash the area thoroughly with soap and water before your next feeding.
Self-Tanners vs. Professional Spray Tans
If inhalation is your main concern, a self-tanning lotion, mousse, or foam eliminates the mist entirely. You apply it by hand, so there’s nothing to breathe in. The active ingredient is the same DHA (or sometimes a similar compound called erythrulose), and La Leche League International confirms both are nontoxic and unable to penetrate beyond the outer skin layer.
With a self-tanner, you also have complete control over where the product goes. You can easily avoid your entire chest area and wash your hands immediately after application. For breastfeeding parents who want the glow without any of the inhalation uncertainty, this is the most straightforward option.
Timing Your Tan Around Feedings
Planning your spray tan or self-tanner application around your baby’s feeding schedule can give you extra peace of mind. Apply the product right after a feeding so you have the longest possible window before your baby needs to nurse again. Most spray tans need 8 to 12 hours to fully develop, and you’ll typically shower off the initial bronzer layer during that time. By the time you’ve showered and the color has set, any residual product on your skin’s surface is gone.
If you’re using a self-tanner, the same approach works well. Apply it after a feed, let it develop for the recommended time (usually 4 to 8 hours depending on the product), then shower before your next nursing session. This way, the product has done its job reacting with your skin cells and any excess has been rinsed away.