Why do we need sunblock when it’s not sunny?

Why do we need sunblock when it’s not sunny?

Summer UVB exposure Our skin is burned.

On a cloudy winter day, UVA enters through the window and ages us.

Then there’s HEV light, which is the blue light emitted by our screens and indoor lighting and is responsible for the breakdown of our subcutaneous fat.

Infrared-A light is emitted by the sun and penetrates much deeper into the skin, causing additional damage to our collagen and elastin.

Light damage the surface skin cells (epidermis), causing irregularities and a breakdown in the skin barrier function. In addition to collagen and elastin harm, there’s really stimulation of pigment cells, likely to result in irregular pigmentation and enlargement of oil glands.

ZO sunscreens provide superior protection by shielding us not only from UVA and UVB rays but also from HEV and IR-A light. They all involve fractionated melanin, which also shapes an umbrella on the skin’s surface to protect it from HEV light. They provide UV protection as well as a slew of other advantages: 12-hour slow-release antioxidant protection to neutralise free radicals that cause oxidative stress, hydration and moisture replenishers to restore lipids, maintain hydration, and strengthen our skin barrier, enhanced DNA repair and protection, anti-redness inhibitors, and they are fortified with vitamin C to inhibit pigment formation

Sunscreens are classified into two types: chemical sunscreens and physical sunscreens. A chemical sunscreen absorbs UV rays and converts them to heat, allowing them to be released from the skin’s surface before they penetrate and cause damage.

Titanium dioxide and zinc oxide are used in physical sunscreen, which sits on top of the skin and scatters and reflects light. Physical sunscreens are preferable if you have sensitive skin or are recovering from surgery.

There are two tinted physical sunscreens and two chemical SPFs in the ZO line.


Smart Tone SPF 50: Rich and hydrating, tinted-changes colour based on your skin tone.

SPF 50 Daily Sheer: A clear, non-greasy lightweight sunscreen with a translucent matt finish. Water repellent.


Broad Spectrum SPF50: Excellent for post-procedure, sensitive skin, or severe pigmentation.

SPF 30 Sunscreen and Primer: This product functions as both an SPF and a primer. It has a silky matt finish and a universal tint. Ideal for oily or acne-prone skin .

SPF30 Sunscreen and Powder: The most recent addition to the triple spectrum protection line, it is enriched with Vitamins A, C, and E for antioxidant protection. It has oil-absorbing properties to reduce shine and hydration while also providing buildable coverage with an airbrushed finish. There are three shades available: light to neutralise redness and irritation, medium for a sheer base, and deep to add warmth and a bronzed look.

Wearing SPF 30+ every day of the year will therefore slow down the ageing process and maintain a healthy complexion.

Most people understand that SPF stands for sun protection factor, which measures protection from UVB rays that cause skin burns .

However, for overall skin health, it is also critical to be aware of a sunscreen’s PPD (persistent pigment darkening) level. The PPD level assesses UVA ray protection, which is responsible for ageing. PPD values are not as precise as SPF numbers (they are also known as PA and are denoted by a + sign). In fact, because there is no standardised system for determining them, there is some ambiguity in their measurement; however, the higher the PPD number or the more +, the better the UVA protection.

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