2 Types of Water to Avoid
Minimize face washing with warm or hot water:
Right after the skin has just gone through the “test” of harsh sunlight, the natural lipid protective layer of the skin becomes more fragile than ever. According to dermatologists, using warm or hot water to wash your face at this time will inadvertently “deprive” the precious natural oil, causing more serious dehydration, making the skin dry, easily irritated and sensitive to UV rays.
Instead, prioritize cool water or physiological saline solution with a balanced concentration to gently cleanse the surface of the skin, bringing a sense of relaxation and reducing redness.

Washing your face with warm water after sun exposure can make your skin dry and more irritable.
Avoid skin care with toner containing alcohol, strong acids
The concept of “deep cleansing” with toner containing alcohol or strong chemical exfoliants such as AHA (Alpha Hydroxy Acids) or BHA (Beta Hydroxy Acids) right after sun exposure is a serious mistake. Experts warn that alcohol and strong acids can disrupt the skin’s natural protective barrier, which has already been damaged by UV rays, leading to irritation, infection, or aggravating sunburn.
The skin after “bearing” the sun often becomes weak and vulnerable, so prioritizing mild moisturizing products with restorative properties such as pure aloe vera gel or panthenol-containing creams is a safer and more scientific choice.
Toners containing alcohol or strong acids can damage the skin’s protective barrier, which is already sensitive after sun exposure.
4 Types of Water to Use Immediately
Filtered Water
Although simple, filtered water plays an essential role in maintaining the necessary moisture for the skin and the entire body. Research shows that consuming enough 2-3 liters of filtered water daily not only helps the skin stay supple but also supports the detoxification process, aiding the body’s recovery from the effects of high temperatures and sunlight. Prioritize water at room temperature or slightly cool, avoiding ice-cold water to prevent thermal shock for the body.
Drinking enough filtered water daily is a simple yet effective way to maintain moisture and support skin recovery.
Fresh Coconut Water
Fresh coconut water is considered a “star” in replenishing lost electrolytes due to sweating, thanks to its rich content of essential minerals such as potassium, sodium, and magnesium. According to studies, coconut water not only helps cool the body naturally but also rapidly provides minerals, supporting the restoration of moisture and freshness to the skin after dehydration. One to two glasses of fresh coconut water (unsweetened) right after sun exposure will bring a refreshing feeling and reduce dry skin.
Fresh coconut water helps replenish minerals quickly, providing a refreshing feeling for the body and skin after hot hours.
Cucumber Juice
With a water content of more than 90% and essential vitamins and minerals, cucumber juice is an ideal choice to soothe and deeply moisturize the skin, especially suitable for the hot and humid climate of Vietnam. Dermatologists believe that cucumber can relieve sun-induced skin redness from within. Just juice 1-2 fresh cucumbers and drink directly or diluted, you will notice the skin’s plumpness and freshness.
Cucumber juice is rich in nutrients and moisture, helping to soothe and plump sunburnt skin.
Chamomile Tea
Trusted by experts, chamomile tea is renowned for its anti-inflammatory properties and skin-soothing abilities. This tea helps reduce UV-induced skin irritation and provides a relaxing feeling for the body. Brew a cup of warm or cooled chamomile tea and sip slowly to allow the body to absorb the valuable nutrients optimally. Chamomile tea is not only good for the skin but also helps you relax after a day of sun exposure.
Chamomile tea not only helps reduce inflammation and skin allergies but also brings relaxation after a long day.
By staying away from harmful habits such as washing your face with hot water and using toners containing alcohol or strong acids, and prioritizing “golden” waters such as filtered water, fresh coconut water, cucumber juice, and chamomile tea, you are building a strong “barrier” to protect your skin. Combining these secrets with a gentle skincare routine and daily sunscreen use, you can maintain healthy and radiant skin, despite environmental influences. If your skin shows signs of severe sunburn, such as blistering or prolonged pain, do not hesitate to seek advice from dermatologists at reputable medical facilities for timely support.
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