Essential oils and flavors: These provide freshness and a minty feel, though some can have mild anti-inflammatory effects.
One of the most immediate effects of applying toothpaste to your skin is the cooling sensation, especially if it contains menthol or peppermint oil. These ingredients have a natural soothing effect, much like a balm. If your skin is suffering from minor irritation, such as an insect bite or mild rash, the cooling effect of toothpaste can provide temporary relief. Applying it overnight could help soothe itching or discomfort and reduce redness the next morning.
Toothpaste is known for its ability to dry out oily areas and pimples. Many DIY acne remedies suggest dabbing toothpaste on pimples to reduce swelling and redness overnight. When applied to the arms, toothpaste could similarly dry out the skin and address issues like clogged pores or small breakouts. The silica and baking soda in toothpaste help absorb excess oil, leaving the skin drier by the next morning.
Certain ingredients in toothpaste, such as baking soda and hydrated silica, act as gentle abrasives. When applied to the skin, they can help exfoliate the outer layer, removing dead skin cells and making the skin look brighter. While applying toothpaste overnight may not give the same results as a dedicated exfoliation product, it can lead to a slight improvement in skin texture and brightness. The next day, you might notice that your arms feel smoother and appear more radiant.
Toothpaste can have a mild anti-inflammatory effect due to ingredients like triclosan and essential oils. If you are experiencing mild inflammation, such as from minor burns, insect bites, or skin irritations, leaving toothpaste on your skin overnight may help reduce the inflammation and redness by the next day. The cooling sensation also contributes to this effect, offering temporary relief.
Some people claim that the whitening properties of toothpaste, especially those with baking soda or hydrogen peroxide, can help reduce the appearance of dark spots or discoloration over time. While there is limited scientific evidence to back up this specific claim, anecdotal reports suggest that leaving toothpaste on areas with pigmentation may have a mild lightening effect, especially if done regularly. After one night, however, results would be minimal, though there could be a slight improvement in the tone of your skin.
Toothpaste is designed for dental care, not skincare. Many of its ingredients, such as SLS and baking soda, can be too harsh for the skin, especially if left on for an extended period. People with sensitive or dry skin may experience irritation, redness, and excessive dryness. Applying toothpaste overnight could cause your skin to become overly dry, leading to flakiness or even a rash.
Some people may be allergic to certain ingredients in toothpaste, such as fluoride, artificial flavors, or essential oils. Leaving toothpaste on your skin overnight increases the risk of an allergic reaction. Symptoms could include swelling, itching, or hives. If you have a history of allergic reactions to skincare products, this remedy might not be the best option for you.
While toothpaste can dry out excess oil, it can also potentially clog pores, especially if it is a thick formula. This can lead to further breakouts or irritation if used frequently.
In some cases, people have reported that the harshness of toothpaste caused mild burns or discoloration when applied to their skin for extended periods. This is more likely to occur if the toothpaste contains strong whitening agents like hydrogen peroxide or if you have sensitive skin.