Dr. Jennifer Pennoyer

08/06/2026

Benzoyl peroxide is one of the most effective over-the-counter ingredients for treating acne—it helps kill acne-causing bacteria, reduces inflammation, and can prevent new breakouts. But did you know that how you store it and when you use it can impact how well it works?

To get the full benefit from your benzoyl peroxide products:
✔️ Store them in a cool, dry place away from direct sunlight and heat. Excessive heat and humidity can cause the active ingredient to break down faster.
✔️ Keep the cap tightly closed to minimize exposure to air.
✔️ Always check the expiration date. Over time, benzoyl peroxide loses its potency, meaning an expired product may not be as effective at clearing acne.

If your acne treatment doesn't seem to be working as well as it used to, don't assume your skin has "gotten used to it"—check the expiration date first!

Using fresh, properly stored products helps ensure you're getting the acne-fighting power you paid for.

08/03/2026

The world of medical aesthetics is evolving rapidly—and so is the importance of choosing the right provider. Dr. Pennoyer is a board certified dermatologist.

This recent article highlights the tremendous growth of medspas across the country and reminds patients that while cosmetic treatments like Botox®, fillers, and lasers are generally very safe, outcomes truly depend on proper training, medical oversight, and adherence to established safety standards.

At our practice, we're committed to staying current with the latest developments in both medical and cosmetic dermatology so we can provide our patients with the safest, most effective, evidence-based care. We also believe that an informed patient is an empowered patient.

Whether you're considering a cosmetic procedure or managing a skin condition, don't hesitate to ask questions about your provider's training, experience, and safety protocols. Your skin deserves expert care—and we're here to help you make informed decisions every step of the way.

Before the treatment plan, there should be a safety plan. Expert beauty insights, trends, and treatments across skincare and aesthetics to help you look and feel your best.

07/30/2026

There is a dangerous trend happening, especially amongst Gen Z: Tanmaxxing is an internet trend that comes from the broader “-maxxing” culture (like looksmaxxing, gymmaxxing, etc.), where people try to optimize a specific aspect of their appearance. Tanmaxxing specifically means trying to maximize how tan your skin becomes, often by deliberately seeking strong UV exposure.

This can involve monitoring the UV index and tanning when it's highest, and spending long periods in direct sunlight while using tanning oils, and/or avoiding sunscreen. It can also include tanning beds.

It is very popular on social media, promoting deep tans as helping to look leaner or more defined, having a healthy glow, and enhancing muscle definition. Of course, we are extremely opposed to tanmaxxing because a tan is fundamentally a response to UV-induced skin damage. Excessive UV exposure increases skin cancer risk (including melanoma), sunburns and long-term skin damage, premature aging/wrinkles, loss of skin elasticity, and sunspots/pigmentation changes.

A healthy tan can be achieved with self tanners without UV exposure. Tanmaxxing is risky and unhealthy.

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07/27/2026

BREAKTHROUGH TECHNOLOGY: RF Pro by Geneo is ideal for instant brightening and rejuvenation.
JULY ONLY: Save 20% on a series of (3) RF Pro Glo2 Facial treatments.
Pennoyer MD is proud to be one of the only local practices offering RF Pro by Geneo™, the latest innovation designed to elevate the Glo₂Facial experience.

This advanced, no-downtime treatment combines radiofrequency technology with the proven benefits of the Glo₂Facial to deliver firmer, smoother, and more radiant skin. With seven customizable treatment options featuring highly effective botanical ingredients, RF Pro can be tailored to address your unique skincare concerns.

Dr. Jennifer Pennoyer discusses and demonstrates Glo2 FacialwithRF ...

07/23/2026

You may have read that the FDA has officially approved bemotrizinol, adding it to the list of permitted sunscreen active ingredients for the first time in the agency's history under the streamlined process established by the CARES Act. It's the first new active ingredient added to the OTC sunscreen monograph since the late 1990s.

It's a chemical sunscreen that offers slightly better protection against UV-A than other chemical sunscreens. It's also more stable than most other chemical sunscreens and doesn't appear to absorb into the skin.That's the good news.

HOWEVER...the level of long wave UV-A protection is weaker than that provided by Zinc oxide in combination with Iron oxides. So if the goal is to prevent wrinkles and lighten hyperpigmentation (both caused by long wave UV-A exposure), people are better protected by Zinc oxide, which is the active ingredient in the Pennoyer MD Skin Science sunscreens. Bemotrizinol can also sting the eyes if it runs. Lastly, it's not exactly transparent on application. and leaves a slightly visible crystalline film on the skin surface.
It also really weakens after about 370 nanometers (nm), and 370-400 nm UV penetrates the deepest. For keeping the skin young looking, which requires better protection in the 370-400 nm range, Zinc oxide remains the very best.

07/20/2026

The best team. How lucky are we?

07/17/2026

FREE NUTRAFOL FOR A YEAR? YES, PLEASE!
It’s super easy to participate: ENTER. WIN. GROW.
No Purchase Necessary. Simply scan the QR code or click here to enter. Winner will be announced in August 2026. Your Best Hair Year Starts with This Giveaway.

07/13/2026

Our newly launched Hair Restoration Information Hub offers trusted physician guidance to help you understand why hair loss occurs and the innovative treatments available today for both women and men. https://www.drjenniferpennoyer.com/hair-restoration/

Explore expert information on:
*Female Pattern Hair Loss
*Male Pattern Baldness
*Hormonal Hair Loss
*Post-Pregnancy Hair Loss
*Stress-Related Hair Loss
*Genetic Hair Loss
*Hair Loss Associated with GLP-1 Medications

Advanced Hair Restoration. Personalized for You. Many patients are now able to slow progression, restore fullness, and stimulate new growth with minimally invasive treatments and little to no downtime. Whether you're beginning to notice thinning or have struggled with hair loss for years, early evaluation can make a meaningful difference in preserving and restoring your hair.
Healthy hair starts with an expert diagnosis. Let Pennoyer MD help you restore your hair—and your confidence.

07/10/2026

🌿 Poison Ivy, Oak & Sumac Season Is Here! 🌿

These plants contain urushiol, an oily resin that can trigger an itchy, red, blistering rash known as allergic contact dermatitis.

Know what to look for:
• Poison ivy & poison oak: typically have 3 leaflets ("Leaves of three, let it be!")
• Poison sumac: 7–13 leaflets and often grows in wet, swampy areas

⚠️ Symptoms usually appear 24–72 hours after exposure and may include:
✔️ Intense itching
✔️ Redness
✔️ Blisters
✔️ Linear or streaky rash patterns

Prevention tips:
• Wear long sleeves, pants, and gloves when outdoors
• Learn to identify these plants before hiking or gardening
• Wash skin, clothing, and gear promptly after potential exposure

Myth alert: Poison ivy rashes are NOT contagious. However, urushiol oil can remain on clothing, tools, and pet fur and cause new exposures.

Seek medical care if the rash is widespread, involves the face or ge****ls, causes significant swelling, or affects breathing or swallowing.

Stay safe and enjoy the outdoors!

07/06/2026

We want every patient to feel confident that they're using the right products and getting the best results from their skincare routine. We're excited to offer Complimentary 20-Minute Skincare Product Consultations with our Esthetician, Julie Brookman, beginning July 6.
During your consultation, Julie will:
*Review your current skincare products and routine
*Help identify what's working—and what may not be
*Explain the proper order to apply your products
*Recommend additions or adjustments tailored to your skin's needs
*Share professional tips to help you achieve your healthiest skin
Bring in all of your skincare products and Julie will evaluate your routine and help you get the most out of every product.
Whether you're looking to simplify your routine, address specific concerns, or simply make sure you're investing in products that support your skin goals, this is a great opportunity to get expert guidance.
Appointments begin July 6, and scheduling is open now. Call 860-243-3020.