Evolu Protective Day Cream SPF15 is a nourishing facial hydrator that is rich in the nutrients and antioxidants needed to promote cell renewal, support connective tissue and deeply infuse your skin with moisture.
Evolu Protective Day Cream SPF15 has broad spectrum SPF15 sunfilters to shield daily against damaging UVA+UVB. It is the perfect day cream to wear with or without make-up because of its balance of weightless texture and protection. It’s also is a nourishing facial hydrator that is rich in the nutrients and antioxidants needed to promote cell renewal, support connective tissue and deeply infuse your skin with moisture.
SPF Factors - What's in a number?
Everyone’s skin has some degree of natural protection against UVB radiation. What SPF factors refer to is a multiple of this natural protection. These natural defences vary widely from person to person, so sunscreens are always tested on a number of people. The outcomes of these tests are then averaged out, to establish an SPF factor.
A sunscreen achieves an SPF15 factor if it will delay to 150 minutes the onset of a sunburn in a person who would otherwise burn in 10 minutes. In other words, an SPF15 should allow a person to stay out in the sun 15 times longer.
The SPF numbers are indicative and helpful. But what they don’t highlight is that the real efficacy of any sunfilter is dependent on several factors. These include: how much and how thoroughly you apply it, how much is washed off or lost through perspiration between applications, and how often you reapply it.
It’s not widely understood that SPF15 sunscreens actually filter out 92-94% of harmful UVB radiation. Interestingly, with SPF30, this level climbs by a tiny percentage, and similarly for SPF40 and above. Arguably, given the other factors that influence the screening effect, these differences are insignificant.
The other factor to consider is how higher SPF factors are achieved. This is done by adding the sun-filtering ingredients in greater amounts, and in a broad-spectrum sunfilter which protects against both UVA and UVB, these ingredients have relatively large molecules that sit on the skin’s surface, reflecting the ultraviolet rays to provide the barrier function. The more they are added to a formula, the denser it becomes, and the thicker and gluggier it feels on the skin – not a desirable outcome for many sunscreen users.
All this is why Evolu prefers to offer SPF15 broad-spectrum sunscreen formulas. We certainly prefer to use natural ingredients wherever possible, but many ‘natural’ sunfilters are simply not effective enough when used on their own, and inorganic alternatives that are, such as Titanium Dioxide, still carry some allergenic risks. Other newer options such as nanoparticles show promise but, in our assessment, the risks of absorbing such ingredients have not been fully established.
In our facial products, we choose to use proven synthetic sunscreens to ensure performance, and given these are approved as safe and not absorbed into the epidermis, we regard this as a balanced approach.