**Denver's Dew: Altitude AC Drying Summer Lashes?**

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
November 10, 2025

The sting of dry, brittle eyelashes is a uniquely frustrating experience, especially when you’re trying to achieve that perfect mascara look. But what if your location is actually contributing to the problem? For those living in Denver, Colorado, the answer might be a resounding yes.

Denver’s dry, high-altitude climate presents a unique set of challenges for skin and hair, and your delicate eyelashes are no exception. The lack of moisture in the air can wick away hydration, leaving lashes prone to breakage and that dreaded brittle feeling. Let’s dive into why Denver’s climate is particularly harsh on eyelashes and, more importantly, what you can do about it.

Denver’s dryness is a major culprit. The city’s average relative humidity hovers around 40%, significantly lower than coastal cities like Miami (around 75%) or even moderately humid cities like Atlanta (around 65%). This means the air is constantly seeking moisture, and it will readily draw it from your skin and hair, including your eyelashes.

Altitude also plays a significant role. At 5,280 feet above sea level (a mile high!), Denver experiences lower air pressure. This lower pressure causes moisture to evaporate more quickly, further exacerbating the drying effects of the already arid climate.

To illustrate the difference, consider Phoenix, Arizona, another dry city. While Phoenix has similar low humidity levels to Denver, the lower altitude means the evaporative effect isn’t quite as intense. This subtle difference can translate to noticeably drier eyelashes for Denver residents.

So, what can you do to combat this high-altitude lash dryness? The key is to focus on hydration and protection.

First, consider your makeup routine. Waterproof mascaras, while great for preventing smudging, can be incredibly drying. The chemicals required to make them waterproof often strip lashes of their natural oils.

Instead, opt for tubing mascaras. These mascaras coat each lash in a polymer tube, rather than painting them with pigment. They are easily removed with warm water and gentle pressure, minimizing the need for harsh makeup removers that can further dry out your lashes.

Next, invest in a good lash serum. Look for serums containing ingredients like:

  • Hyaluronic acid: A powerful humectant that attracts and retains moisture.
  • Peptides: Help to strengthen and condition lashes.
  • Biotin: A B-vitamin known to promote hair growth and strength.
  • Castor oil: A rich oil that can help to moisturize and condition lashes.

A common mistake is applying lash serum only at night. For Denver residents, applying a thin layer of serum in the morning before applying mascara can provide an extra layer of protection against the dry air.

Here’s a DIY deep-conditioning lash serum recipe you can whip up at home:

Ingredients:

  • 1 teaspoon castor oil
  • 1/2 teaspoon vitamin E oil
  • 2 drops lavender essential oil (optional, for scent and potential soothing benefits)

Instructions:

  1. Combine all ingredients in a small, clean container.
  2. Using a clean mascara wand or cotton swab, apply a thin layer of the serum to your upper and lower lash lines before bed.
  3. Be careful not to get the serum in your eyes.
  4. Store the serum in a cool, dark place.

This serum provides intense hydration and conditioning, helping to combat the drying effects of Denver’s climate. The castor oil is deeply moisturizing, while the vitamin E oil provides antioxidant protection.

Another often overlooked factor is diet. Staying hydrated is crucial for overall health, and that includes the health of your eyelashes. Aim to drink plenty of water throughout the day.

Consider incorporating foods rich in omega-3 fatty acids into your diet. These healthy fats can help to improve the overall health and hydration of your hair, including your eyelashes. Good sources of omega-3s include salmon, flaxseeds, and walnuts.

Finally, be mindful of your environment. If you spend a lot of time indoors with the air conditioning running, consider using a humidifier to add moisture back into the air. This can make a significant difference in the overall hydration of your skin and hair.

Living in Denver doesn’t have to mean sacrificing healthy, beautiful eyelashes. By understanding the unique challenges posed by the city’s dry, high-altitude climate and implementing these simple strategies, you can keep your lashes hydrated, strong, and looking their best. Don’t let the Mile High City get the best of your lashes!

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