Excessive cleansing can kill your skin's good bacteria: Doctor's tips to lock skin hydration

Many of us are unaware that millions of microscopic organisms, including bacteria, fungi, and viruses, live on the surface of our skin. This complex, delicate ecosystem is known as the skin microbiome. Far from being harmful, these "good microbes" act as a vital shield, helping to maintain skin radiance, lock in hydration, and bolster our natural immunity. However, several modern skincare habits are inadvertently destroying these helpful microbes, paving the way for severe, long-term skin issues. Dr Melna Jose, Consultant Dermatologist, at Vibha Clinic, Bharat Hospital, Kottayam, explains.

Harsh cleansers and over-washing
Strong soaps or foaming face washes packed with sulfates and aggressive chemicals strip away natural lipids. This process doesn't just clean the skin—it completely wipes out the beneficial bacteria that keep your skin healthy. Keep face washing limited to twice a day.

Excessive chemical and physical exfoliation
While exfoliating helps clear dead cells, overusing physical scrubs or chemical exfoliants containing AHAs and BHAs can tear down the skin's protective barrier, leaving it raw and defenceless.

Overusing antibacterial products
Constant use of antibacterial soaps and hand sanitisers on the face or body kills off microorganisms indiscriminately, eliminating good bacteria alongside the bad.

Dehydration and a poor diet
Inadequate water intake and a diet dominated by ultra-processed junk food can drastically alter the skin's natural pH levels. This disruption makes the skin inhospitable for beneficial bacteria to survive and multiply.

What happens when the microbiome is damaged?
When the population of beneficial microbes dwindles, harmful bacteria seize the opportunity to multiply. This imbalance often shows up as persistent acne flare-ups, eczema, severe redness, itching, and dry, flaky patches of skin.

How to restore your skin's natural ecosystem
To help your skin recover, transition to mild, pH-balanced cleansers and always follow up with a nourishing moisturiser to lock in hydration and support barrier recovery. You can also support your microbiome from the inside out; adding probiotic-rich fermented foods like curd and buttermilk to your daily diet can significantly boost healthy bacteria in both your gut and skin.

Clean skin does not mean stripped, chemically sanitised skin. True dermatological care lies in maintaining your body's natural biological balance. If you are dealing with chronic, stubborn skin irritation, consult a qualified dermatologist for a targeted treatment plan.