Santa Fe's "Natural" Sunscreen Secret: Are You Burning?

By Franklin Everett Shaw

February 16, 2026

The high desert sun of Santa Fe, New Mexico, isn’t just picturesque; it’s relentless. Generations of New Mexicans have turned to the land for solutions, including sun protection. But are these time-honored traditions truly effective against the sun’s harmful rays, or are they just wishful thinking under a cerulean sky?

Let’s be blunt: relying solely on anecdotal “natural” remedies for sun protection in Santa Fe is a gamble with your skin’s health. The sun doesn’t care about tradition.

Many swear by the cooling sensation of aloe vera, readily available in Santa Fe gardens and markets. While aloe vera is fantastic for soothing sunburn, it offers negligible protection against sunburn. It’s a post-sun treatment, not a preventative measure.

Another common belief centers around the supposed sun-blocking properties of certain desert plants, like chamisa (rabbitbrush). The idea is that crushing the leaves and applying the resulting paste to the skin will create a natural barrier. There’s zero scientific evidence to support this.

Think about it: if chamisa offered significant sun protection, wouldn’t the indigenous populations of the Southwest have significantly lower rates of skin cancer than they do today? They don’t.

The problem lies in the lack of quantifiable SPF (Sun Protection Factor). SPF measures how well a sunscreen protects skin from UVB rays, the primary cause of sunburn and a major contributor to skin cancer. You simply cannot determine the SPF of a crushed plant leaf.

Walk into any Walgreens or CVS in Santa Fe, and you’ll find shelves stocked with FDA-approved sunscreens, each rigorously tested and labeled with a specific SPF. These products undergo stringent quality control to ensure they deliver the protection they promise.

A common misconception is that “natural” sunscreens, often marketed as mineral-based with ingredients like zinc oxide and titanium dioxide, are inherently safer than chemical sunscreens. While mineral sunscreens are generally considered safe and effective, the key is the SPF rating and proper application, not just the ingredient list.

Many “natural” sunscreen brands sold in Santa Fe health food stores are significantly more expensive than their drugstore counterparts, yet may offer the same or even less protection. Don’t fall for the marketing hype.

Consider this scenario: you’re hiking in the Sangre de Cristo Mountains outside Santa Fe. You apply a homemade chamisa paste to your face, believing you’re protected. Hours later, you’re nursing a painful sunburn. Meanwhile, your friend, who used a broad-spectrum SPF 30 sunscreen from CVS, is perfectly fine.

The choice is clear.

Now, let’s address the desire for a more “natural” approach. It’s possible to create a DIY sunscreen, but it requires careful formulation and, crucially, SPF testing.

Here’s a basic recipe, but understand this is for informational purposes only and requires professional SPF testing before use:

1/4 cup coconut oil (provides minimal SPF, mostly for moisturizing)
1/4 cup shea butter (also moisturizing and offers a slight SPF boost)
2 tablespoons zinc oxide powder (non-nano, uncoated – this is the active ingredient)
Optional: A few drops of essential oil for scent (lavender or chamomile are good choices)

Instructions:

Melt the coconut oil and shea butter in a double boiler or heat-safe bowl over simmering water.
Remove from heat and let cool slightly.
Slowly whisk in the zinc oxide powder, ensuring it’s fully incorporated and there are no clumps.
Add essential oils, if desired.
Pour into a clean container and let cool completely.

Important Considerations:

Zinc Oxide Concentration: The amount of zinc oxide directly impacts the SPF. More zinc oxide may increase SPF, but it also makes the sunscreen thicker and harder to apply.
SPF Testing is Crucial: This recipe is a starting point. You must send a sample to a lab for SPF testing before using it regularly. Labs specializing in sunscreen testing can be found online. Expect to pay several hundred dollars for accurate results.
Application: Apply liberally and reapply every two hours, or more frequently if swimming or sweating.
Stability: Homemade sunscreens may not be as stable as commercial products. Store in a cool, dark place and discard after a few months.
Patch Test: Always do a patch test on a small area of skin before applying to your entire body.

The biggest challenge with DIY sunscreen is achieving a consistent and reliable SPF. Zinc oxide can clump, and the distribution of the powder within the mixture can vary, leading to uneven protection.

Another pitfall is relying on online calculators or anecdotal SPF estimates for ingredients. These are often inaccurate and can give you a false sense of security.

Let’s talk about the cost. While the ingredients for a DIY sunscreen might seem inexpensive, the cost of SPF testing quickly adds up. You might end up spending more on a single batch of homemade sunscreen than you would on several bottles of a reputable commercial brand.

Furthermore, consider the time and effort involved. Formulating, mixing, and testing a DIY sunscreen is a time-consuming process. Is it really worth it when effective and affordable options are readily available at your local Santa Fe pharmacy?

The allure of natural remedies is understandable, especially in a place like Santa Fe, where a connection to the land is deeply ingrained. However, when it comes to sun protection, prioritize science and proven effectiveness over tradition and wishful thinking.

Don’t let the romanticism of the Southwest sun blind you to the realities of skin cancer. Use FDA-approved sunscreen, wear protective clothing, and seek shade during peak hours. Your skin will thank you.

If you’re determined to explore DIY sunscreen, do it responsibly. Invest in SPF testing, understand the limitations, and always prioritize safety. The desert sun is beautiful, but it’s also unforgiving.