UVA, UVB... and Blue Light Radiation?

July 31, 2019

UVA, UVB... and Blue Light Radiation?

While the sun may be beneficial to us as a source of energy, Vitamin D and endorphin stimulation, overexposure to the sun and visible light may bring about a plethora of other problems for us; including skin burns, photoaging, hyperpigmentation and skin disorders (such as skin cancer!)

Overexposure to the sun and visible light is responsible for 90% of premature skin ageing. This is due to the ultraviolet radiation emitted by the sun and absorbed by our skin.

What is Ultraviolet Radiation?

UV radiation is part of the electromagnetic (light) spectrum that reaches the earth from the sun. It has wavelengths shorter than visible light, making it invisible to the naked eye.


UVA rays account for up to 95% of the UV radiation reaching the Earth's surface. Although they are less intense than UVB, UVA rays are 30 to 50 times more prevalent. They are present throughout the day and can penetrate through glass.

UVA, which penetrates the skin more deeply than UVB, has long been known to play a major part in skin aging and wrinkling (photoaging).


UVB is the main cause of skin reddening and sunburn. UVB rays tend to damage our skin's more superficial epidermal layers. It plays a key role in the development of skin cancer and a contributory role in tanning and photoaging. Its intensity varies by season, location, and time of day. 


To find out more about the full Ultraviolet Index, and to see the latest UV Index forecast and breakdown for Singapore, click here!

We've heard time and time again about the damaging effects of the sun; specifically the damage caused by UVA and UVB rays. But what about blue light?

Blue Light

Visible light, or blue light, is capable of inducing intracellular oxidative stress and triggering toxic effects within our skin cells. Blue light emits the strongest energy in the visible spectrum.

Recent studies have shown that the blue light emitted by artificial light sources such as blue light lamps, LEDs, computer screens and smartphones manage to penetrate down to the hypodermis, thus causing skin hyperpigmentation. It also generates a 50% increase in free radicals and oxidative stress that can accelerate skin ageing.

Although blue light may not be as prevalent as UVA or UVB rays, blue light is still able to penetrate much further than UVA and UVB rays, damaging the deeper layers of our skin.

How can we defend ourselves against blue light?

Visiblue Screen Complex®

Bema's Blue Defence range is created using Visiblue Screen Complex®; an exclusive complex of new-generation active ingredients developed in the Bema Cosmetics Research Laboratories. Visiblue Screen Complex® is able to shield the skin from harmful blue light rays that come from the sun and electronic devices.

Visiblue Screen Complex® comprises of four key ingredients: Lycopene, Verbascum, Knotgrass (Polygonum) and Rice Oil (rich in Gamma-Oryzanol).

There are three main functions of Visiblue Screen Complex®:

  1. Protection
    Verbascum petals are able to absorb potentially harmful UV radiation and transform it into a new light source that increases skin brightness.
  2. Antioxidants
    Lycopene, boosted by Gamma-Oryzanol, is one of the most powerful antioxidants of the carotenoid family. Lutein and Lycopene are powerful Blue Light filters.
  3. UV & IR Protection
    Knotgrass is an IR ray filter, and preserves the elasticity and tonicity of the skin. Knotgrass preserves the integrity of dermal fibres and protects the skin from infrared rays.

Explore and shop our Blue Defence range now!

Leave a comment

Comments will be approved before showing up.

Also in Aldha

The Best Time of the Year
The Best Time of the Year

December 17, 2019

Sign up on our Aldha Loyalty Rewards to start earning points now.

If you already have an Aldha account with us, simply click the 'Rewards' button on the bottom right-hand side to view your Aldha Rewards Account.

Click this button at any time to view all the ways you can earn points and all the rewards you are eligible for redeeming now! 

Continue Reading

3 Advantages of Organic Skin Care for Men
3 Advantages of Organic Skin Care for Men

November 13, 2019

Alright, lads.  You hear it everywhere.  Organic is the best way to go when nourishing your body.  From nutrition to skincare. But with women’s products seemingly bursting from the shelves, it leaves many men wondering what’s out there for them!  Fortunately, we have some of the best solutions to keeping your skin not just handsome, but healthy! Here, we list 3 advantages to using organic skincare and the top products to deliver on these benefits!

Continue Reading

Flaska Brochure
Flaska Brochure

October 27, 2019

Flaska is not your typical water bottle! Flaska is a stylish, reusable glass water bottle with a difference. Not only is it good for your health (as it's made of glass) and the environment (as it's reusable), but it also saves you tons of money.

What is Flaska and how is it different from other water bottles? Find out here today! Read our brochure and find out more.

Continue Reading


Net Orders Checkout

Item Price Qty Total
Subtotal $0.00

Shipping Address

Shipping Methods