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Here’s What Happened When I Tried It
I have never been big into makeup. While some women layer on foundation and powder to achieve a super flawless finish, I have always been partial to a more natural look achieved via a tinted face lotion or light foundation. However, as I have aged, the dark spots on my face have gotten more pronounced. My hope in using Opte was that I could eliminate the need for foundation altogether.

When I opened the beautifully packaged box housing the Opte wand, tip, cradle, power cord, Optimizing Serum, and conditioning disc, I was slightly intimidated by the setup process. However, I followed the step-by-step instructions and watched an instructional video, and it was actually quite simple to get going. A free personalized video consultation is also available to walk you through the setup process.

The cradle must be plugged in at all times, per the brand's recommendation. It serves as a charger but also cleans and conditions the gadget to boot. The wand is meant to remain housed in the cradle at all times when it is not in use. The brand recommends cleaning the tip, which comes off easily, and there's a designated spot below the wand in the cradle to store the tip between uses. The disc also remains in the cradle, cleaning the wand after each use. If you unplug the cradle, the wand will not work. Additionally, if the device is left unplugged or off the cradle for too long, the serum may become unusable. When you are ready to use the wand, you simply press on the cradle and it opens. After a few seconds, it lets you know it is ready for use by displaying a message on its small screen.

Before using Opte for the first time, I watched another instructional video. To simplify application, the brand created the 4S application technique, referring to the motion and pressure with which to use the device: soft, slow, straight, sweep. It recommends three- to five-second straight strokes (no tilting the wand and keeping rollers flat), using a feather-light amount of pressure; working in long, broad strokes; and avoiding lifting the device off your skin during the process. While sweeping the skin, the device clicks as it detects dark spots and applies the nearly invisible serum.

I started by applying my eye and face cream, but no foundation or concealer, as any makeup will prevent the gadget from being able to detect dark spots. Taking the wand off the cradle and equipping it with its tip, I was ready to start the application process.

Even with light pressure, I could feel the spikes on the roller, but there was very little discomfort. Initially, it hurt a little. I realized that was the result of pressing too hard, which is noted in the instructions, and corrected my technique. The product is buildable — meaning it might take a few applications to get your desired result. I followed the brand's recommendation and started on half of my face, working my way to the other side. Then I returned to the first half for a second application. The whole process of coverage is meant to take about five minutes, per Opte. Any longer than this and you are wasting the serum. After use, I cleaned the tip with soap and water, dried it, and placed it back on the cradle. Next, I set the wand on the cradle and listened as it cleaned itself. The screen on the wand displayed how much serum remained.

Expecting miraculous results, I was slightly underwhelmed after my first use. My skin isn’t terrible, but it isn’t flawless either. At the time, I had a breakout or two and some redness. I also have darker under-eye circles. While the device is meant to cover dark spots, it can’t help conceal other skin ailments, including rosacea, which causes skin redness, and dark under-eye circles.

While my skin definitely looked more even than it did prior to use, and more natural than with a layer of foundation, by no means did I feel flawlessly faced or camera ready. Opte maintains that while the tinted serum will camouflage dark spots on application, they won’t fade overnight. If you are looking for coverage on par with foundation, prepare to be disappointed. I was tempted to supplement the serum with foundation or concealer. However, the brand recommends not wearing any liquid or cream foundation after applying the serum, as it will remove the serum and undo the camouflage. Only powder products are recommended. Coverage is meant to last 8 to 10 hours, but because the serum is nearly invisible, I am not sure exactly how long it remained on my face.

I continued using Opte for a month. My skin started feeling a little bit tighter, likely as a result of the serum. Did my dark spots start to fade? Possibly. The more I used the gadget, the less clicking occurred, meaning it wasn’t detecting as many dark spots. But I am guessing I will have to keep using it for a few more months to really see a transformation.

Potential Benefits of Caffeine Skin-Care Products
Caffeine primarily works through circulation, so it’s fast acting, protective against oxidative stress, and anti-inflammatory for the skin, says Ife Rodney, MD, a board-certified dermatologist and founder of Eternal Dermatology and Aesthetics in Fulton, Maryland.

Caffeine may also help protect against photodamage, like fine lines and wrinkles after sun exposure. “Studies show caffeine helps when it’s applied after exposure to UVA and UVB rays,” Dr. Rodney says. “You will get that immediate lift and oxidative-stress protection, but it can wane over time. Skin-care products should include other active ingredients that can help repair your skin.”

Some other ingredients that are great for skin include aloe, tea tree oil, shea butter, vitamin C, and jojoba oil, says Rodney. “These all have antioxidants, which slow oxidative stress and may even help restore damaged cells,” she explains.

Speaking of sun-soaked skin, a growing body of research in animals suggests that caffeine may have anticarcinogenic properties, says Hsu.

“In one study done with mice, for example, caffeine applied topically promoted apoptosis, or cell death, in cells damaged by sunburn,” he says, referencing a paper published in December 2021 in the Journal of Biology, Medicine and Biochemistry. “Researchers concluded that topical caffeine results in actual cell death of squamous cell carcinoma and benign skin tumors.” Squamous cell carcinoma is a type of skin cancer. Of course, large-scale clinical trials are needed to know whether humans would see the same anti-cancer effects.

Are There Any Downsides to Using Caffeine in Skin Care?
The main downside is that the skin benefits of caffeine work for only a short period of time, similar to drinking a cup of coffee, says Rodney. “Caffeine is a temporary solution and will not cure wrinkles or under-eye bags,” she says. “You should still invest in other skin-care items that work well with this product and target your specific skin issue long term.” Examples include a cleanser with salicylic acid, serums with vitamin C and niacinamide, moisturizers with ceramides, and a broad-spectrum sunscreen, Rodney suggests.

Caffeine can also irritate your skin, causing redness from the increased blood flow. If you have sensitive skin or a caffeine sensitivity, you may want to get started by testing out this ingredient in small doses on a limited part of your skin.

“I suggest doing a small patch test, the size of a dime behind the ear or on the jawline,” says Hsu. “Do it a couple times and see how the skin reacts before using it.”

Caffeine Skin-Care Products Dermatologists Love
One of the most popular skin-care products is Inkey Caffeine Eye Cream ($9.99, Sephora.com). Actress Gemma Chan and musician Alanna Haim reportedly swear by the staple for reducing puffy eyes in the morning. It contains a popular anti-aging peptide called Matrixyl 3000, which is known to enhance anti-wrinkle performance, though more research is needed to determine how well it can permeate through your skin, one paper suggests.

But that’s not the only product you’ll find caffeine in — the ingredient has cropped up in serums, body scrubs, and even cellulite treatments. The following are some of the items dermatologists recommend.

1. Biossance Squalane + Caffeine Toning Body Cream
Per Rodney, this product mixes caffeine with plant-based derivatives, which are active ingredients that help soothe skin, speed cell turnover, or provide added hydration. She notes that it also contains squalene, which research suggests helps hydrate the skin.

Biossance Squalane + Caffeine Toning Body Cream, $28, Sephora.com

2. InterFuse Treatment Cream EYE
This medical-grade buy contains Kakadu plum extract, which is chock-full of antioxidants to help combat free radicals, which break down collagen, an effect that contributes to signs of premature aging by causing fine lines and wrinkles, says Hsu. A recent study found that Kakadu plum extract retains high antioxidant activity even after it’s added to a cream.

InterFuse Treatment Cream EYE, $110, Skinbetter.com

3. The Ordinary Caffeine 5% + ECGC Depuffing Eye Serum
Rodney likes this product because the caffeine is derived from green tea, which contains more antioxidants than caffeine derived from coffee. “Antioxidants are great for repairing the delicate skin that’s under the eyes,” she says. Rodney notes that it also contains hyaluronic acid, to help keep the skin under your eyes plump and well hydrated. Research supports the idea that hyaluronic acid can help rejuvenate skin and stimulate the production of collagen, which keeps skin firm and bouncy.

The Ordinary Caffeine 5% + ECGC Depuffing Eye Serum, $7.50, Sephora.com

4. ZO Skin Health Cellulite Control Cream
In addition to caffeine, this medical-grade product, which Hsu recommends, contains plankton extract to hydrate the skin. One review suggests that marine-based ingredients, like algae, may have a range of skin-supporting benefits, from reducing pigmentation to reducing wrinkles.

Why Caffeine Is Added to Skin-Care Products
While it may sound too good to be true, those caffeine skin-care devotees may be onto something.

Caffeine is a vasoconstrictor, meaning it makes your blood vessels get smaller and tighten, says Jeffrey Hsu, MD, a board-certified dermatologist and codirector of Oak Dermatology in Chicago.

“When used in skin care, caffeine reduces blood flow to the skin and makes it look brighter and tighter,” Dr. Hsu says. “It’s often seen as an anti-aging or wrinkle-smoothing ingredient in face care, eye care, and even body care.”

The key to making skin-care products work is proper formulation. In particular, when the right amount of caffeine is used, it can be an effective ingredient to freshen up your skin, eliminate dark under-eye circles, and reduce puffiness in your face.

Several studies, like one published in the International Journal of Cosmetic Science, show that caffeine molecules are small enough to pass through the top layers of your skin, so it can really dig in and do its job intradermally, explains Hsu.

But it’s worth noting that just because a product claims it contains caffeine, it doesn’t mean it will automatically give you the benefits you’re looking for, he says.

“In order for caffeine to be effective as mentioned, it must be applied in highly concentrated doses,” says Hsu. “I always recommend patients to go with medical-grade skin-care products, as they are backed by controlled studies that prove the products' formulations, ingredient transparency, and efficacy.”

When evaluating skin-care labels, marketing jargon like “clinically proven” and “pro grade” are not necessarily synonymous with “medical grade,” adds Hsu. “Medical-grade products are dispensed at a physician’s office or a med spa that has a medical director overseeing their operations.”

Problemas de la piel
Las personas con problemas de la piel representan el diez por ciento de todos los pacientes que acuden a los médicos de familia.

Los motivos de consulta son pocas veces considerados "serios", pero pueden causar dolor o incluso incapacidad, así como problemas sociales y emocionales.

Las enfermedades de la piel suelen transmitirse de generación en generación, pero el hecho de que sean hereditarias no quiere decir que sean incurables o que no puedan ser tratadas de forma satisfactoria.

Los problemas de la piel más frecuentes son:

Infecciones víricas
Ezcemas
Psoriasis
Acné
Infecciones por hongos
Cáncer de piel
Urticaria
Alopecia
Lunares
"El mayor riesgo para la piel es el exceso de luz solar, que puede llegar a provocar el envejecimiento prematuro o incluso cáncer de piel".