No matter where you live, you’ll undoubtedly face sun and bugs at some point during the year. What is our best defense against two of the warmer months’ biggest casualties—sunburn and bug bites? Not all chemicals in sunscreen and insect repellent are created equal. Which products are safe and which ones carry a toxic load?
It’s important to be mindful of what we’re slathering on our skin. This protective sheath is the largest organ of our body and, similar to the intestinal wall, readily absorbs what it’s exposed to. Sure, we all want protection against warm weather critters and don’t want to bake ourselves to a crisp, but when you consider the long-term implications of exposure to the chemical cocktails often found in sun and bug repellants, you may want to explore your options. Some of the chemicals used are a toxic burden to the liver and some have been shown to cause cancer and been implicated as endocrine (hormonal) disruptors.
Many sunscreens are formulated with parabens (chemical preservatives), harsh solvents, alcohols, petroleum products, and fragrance chemicals that have been linked to cancer. Yet products that claim to be “natural” and “organic” may still contain synthetic chemicals. So just as we read labels on our food, it’s important to read labels on skincare products.
These are common toxic chemicals used in sunscreens:
- 4-methy-benzyldencamphor (4-MBC) – A known endocrine disruptor, it has estrogenic effects and suppresses thyroid function
- Homosalate (HMS) – May cause organ system toxicity
- Benzophenone-3, also known as Oxybenzone – A possible photocarcinogen that increases free radical damage and has estrogenic effects
- Octyl-methylcinnamates (OMC) – Known toxin and endocrine disruptor
- Octyl-dimethyl-para-amin-benzoic acid (OD-PABA) – Causes biochemical or cellular level changes
The two natural ingredients the FDA has allowed to be sold as sunblock are zinc oxide and titanium dioxide. These are the substances found in the safest sunscreens. There is minor controversy about the safety of titanium dioxide, but according to Dr. Andrew Weil, founder and program director of the Arizona Center for Integrative Medicine, “I have always recommended choosing sunblocks containing zinc oxide or titanium dioxide, both inert, opaque compounds that block almost the entire spectrum of the sun’s damaging rays without causing irritation. Zinc oxide acts as a mechanical, rather than chemical, sun barrier.”
One of the downfalls of using sunscreen is that limiting our ability to absorb the sun’s rays greatly inhibits our Vitamin D production. Vitamin D is actually not a vitamin or a nutrient. It’s a hormone produced when we receive direct sunlight on our skin. Because the body cannot produce any vitamin on its own, Vitamin D is considered a hormone because it’s made within the body via photosynthesis.
It’s estimated that 70% of us are deficient in Vitamin D, and inadequate levels have been linked to everything from pancreatic, breast, colon and prostate cancers, to neurological disorders, asthma, heart disease, autism, hypertension, depression, autoimmune diseases, and tooth decay. By using sunscreens to prevent skin cancer, we may actually be contributing to cancer-promoting deficiencies. Couple this with the cancer risks associated with the common chemicals used in sunscreens, and we may be doing more harm than good.
Even 20 minutes in mid-day direct sunlight, sans sunscreen, increases our Vitamin D levels significantly. The more sunlight we are exposed to in the warmer months, the less supplementation we need in winter because our bodies store Vitamin D in our fat cells.
Better Bug Management
The most commonly used chemical in insect repellents is DEET. While effective, Dr. Weil calls it “nasty and toxic,” as it has been linked to nausea, skin rashes, lethargy, and muscle spasms. According to Dr. Joseph Mercola, “… there are other potentially harmful chemicals in bug sprays, one of which is permethrin. Permethrin is a member of the synthetic pyrethroid family, all of which are neurotoxins. The EPA has even deemed this chemical carcinogenic – it causes lung tumors, liver tumors, immune system problems, and chromosomal abnormalities.”
Fortunately, we have safe options for keeping bugs at bay. Some of these botanical oils and extracts have been shown to be as effective as DEET. According to Dr. Mercola, cinnamon oil has proven to be better at killing mosquitoes than DEET. Neem, from the Indian tree Azadirachta indica, and repellants containing geraniol, a plant-derived compound, both provide significant protection. Other powerful protectors include citronella, peppermint oil, and lemongrass oil.
Look for repellants containing these natural ingredients, or better yet, make your own super effective oil or spray. Here is a natural insect repellent recipe, courtesy of herbalist Debra Nuzzi-St. Claire:
Base Oil Concentrate*
- 1/2 ounce citronella oil
- 1/4 ounce lavender oil
- 1/8 ounce pennyroyal oil
- 1/8 ounce eucalyptus oil
- 1/8 ounce tea tree oil
- 1/8 ounce jojoba oil
*Do not use this blend undiluted on your skin. Follow these instructions for diluting:
Insect Repellent Oil: Add 16 ounces of jojoba or almond oil to the base oil mixture and blend thoroughly.
Insect Repellent Spray: Add 16 ounces of vodka to the base oil mixture, pour into a spray bottle, and shake before using.
Our skin is like a sponge that will mop up whatever chemical soup we feed it. While we may not have the luxury of ever finding food-grade bug spray and sunscreen, ditching the toxic chemicals for the safer alternatives is a nice way to treat ourselves and our environment well.
Some useful resources:
- Environmental Working Group: Sunscreens Exposed – Executive Summary
- Environmental Working Group’s Skin Deep Cosmetics Database
This article originally appeared on the Stronger Together web site. See more at: http://strongertogether.coop
And visit Wild Oats Market for organic and natural sunscreen and sunblock products from Alba Botanica, Aubrey, Goddess Garden Organics and Badger. Most sun products on sale now through July 1.
For a natural insect repellent, try Bite Blocker all natural and organic, DEET-free insect repellent. Effectively repels ticks as well as mosquitoes, black flies and other insects.