What consequences do patches have?

Transdermal patches became part of many people's wellness cabinet, and with that came the obvious question: what consequences do they really have?

The short answer: used correctly they are safe and well tolerated, and the main side effects of patches are local — above all skin irritation. But it is worth distinguishing between types of patch, because they do not all do the same thing nor do they involve the same risks.

First: not all patches are the same

This is the underlying confusion in almost the entire conversation on the subject. Under the word «patch», very different things coexist:

• Pharmacological patches — they release a medication into the bloodstream: nicotine, hormonal contraceptives, analgesics, hormones. They are medicines, they require medical indication and they have real systemic effects.
• Supplementation patches — they deliver vitamins, minerals or plant extracts. They are not medicines and their risk profile is far more limited.
• Physical patches — they do not deliver any substance: they act by temperature, like the cold or heat ones. Their effect is local and mechanical.

Putting all three in the same bag produces mistaken conclusions in both directions: people who fear a vitamin B patch as if it were hormonal, and people who treat a contraceptive patch as if it were an accessory.

The positive consequences

They avoid the digestive system

It is the main advantage. What you take orally crosses stomach acid, digestive enzymes and then the liver before reaching the blood. On that journey an important part of the active is lost. The transdermal route skips that path: absorption in a well-formulated patch can reach up to 80%. If you want the full comparison between the two routes, we develop it in patch or pill: which one absorbs better?.

Gradual release

Instead of a peak and a drop —the typical thing with a capsule— the patch delivers the active in a sustained way over hours. For nutrients the body uses continuously, that makes more physiological sense. It is precisely the principle behind a sleep patch with melatonin, where what matters is not the initial peak but keeping the level all night.

They don't upset the stomach

Anyone who has taken a multivitamin on an empty stomach knows what we are talking about. By not passing through the digestive tract, patches avoid the heaviness, the acidity and the nausea that some oral supplements cause.

They get used

The supplement that works is the one you actually use. A patch you put on in the morning and forget until night has a far better compliance rate than a bottle of capsules you have to remember twice a day.

The negative consequences: the side effects of patches

Skin irritation

It is, by far, the most common one. Redness, itching or sensitivity in the application area, normally mild and temporary. It is greatly reduced by rotating the site with each use instead of always sticking it in the same place.

Reactions to the adhesive

Some people react to the glue more than to the patch's content. If you have sensitive skin or a history of contact dermatitis, test on a small area first.

Systemic effects — only in pharmacological patches

A nicotine, hormonal or analgesic patch can indeed produce effects throughout the body: nausea, headache, mood changes or cycle alterations, depending on the case. This does not apply to a vitamin patch, but it is exactly the reason why patches with medication require a prescription and follow-up.

Variability between people

Skin thickness, local circulation, sweating and even the application area modify how much is absorbed. That is why two people can report different experiences with the same product.

How to use them well

• Clean, dry skin with no creams. Oils and moisturizers prevent the patch from sealing and reduce absorption.
• Rotate the application spot. The most effective measure against irritation.
• Respect the indicated time. Leaving it on for more hours than recommended does not add effect, only irritation.
• Areas with little hair and good circulation — arm, shoulder, hip, abdomen.
• One at a time of the same type. Doubling up does not speed anything up.

When to consult your doctor

Stop using it and consult if intense irritation appears or irritation that does not ease when you remove it, blisters, hives, or any general symptom such as dizziness or difficulty breathing. Also if you are pregnant, breastfeeding, take medication chronically or have a diagnosed condition: in those cases it is worth reviewing it before starting, not after.

And if what you are looking for is a patch with medication —contraceptive, nicotine, analgesic— that goes through a medical consultation, with no shortcuts.

Our patches

The Everyday Lab's patches are supplementation patches, not pharmacological ones: they deliver vitamins, minerals and extracts, not medication.

• The Hangover Patch — B complex vitamins and antioxidants for the night out.
• The Recharge Sleeping Patch — with melatonin, and here we explain whether it really works. The melatonin-free version also exists.
• The Multi-Vitamin Patch — your daily multivitamin without passing through the stomach.
• The Anti-Nausea Patch — for trips by car, plane or boat. There is a version for kids.
• The Menstrual Patch — localized heat for cramps.
• The Cool-ing Patch — cold for headache and migraine. The version for kids is designed for fever.

See the full line in Patches.

In summary

The consequences of patches depend above all on what type of patch it is. Supplementation ones are safe and well tolerated, with local irritation as the main discomfort and good absorption as the main advantage. Pharmacological ones are medicines and deserve the same respect as any other. In both cases, rotating the site, respecting the time of use and reading the label solves most of the problems.

Keep reading: Patch or pill: which one absorbs better? · Sleep patch with melatonin: does it work? · Do supplement patches really work? · Science and transdermal absorption · Which wellness patch to choose in Mexico?

In the media: learn more about the effectiveness and the technology of The Everyday Lab's transdermal patches in the coverage by La Razón, and on our press page.

This content is informational and does not replace medical consultation. Food supplements are not medicines. Results may vary.