FREQUENTLY ASKED QUESTIONS

What SPF rating I should look for?

The SPF rating assigned to a sun protection product is an indicator of its ability to protect against the UVB wavelength of light and is determined based on acute erythemal reaction, i.e. sunburn. Choosing sun protection based solely on SPF is not enough. The common rule of thumb to "use SPF 30 or above" to protect the skin from sun damage is outdated, misleading and can be dangerous. SPF rating pertains to UVB radiation only. UVB is not the only ultraviolet wavelength that damages the skin. SPF is not a sufficient or reliable indicator of the level of protection against any biological damage other than sunburn. As our understanding of light`s impact on skin has evolved, it has become clear that UVA adversely affects the deep dermis far more than the superficial "sunburn" caused by UVB rays, and we suggest that pay attention to active ingredients listing on the label containing Zinc Oxide and Titanium Dioxide will protect against broad-spectrum UVA & UVB radiation.

How can I tan without burning?

There is no such thing as a "safe" tan. Chronic exposure to the sun causes long-term problems including cancer. One in five Americans will develop skin cancer in their lifetime as a result of too much sun exposure. Some people believe that indoor tanning is a safer alternative to the sun, however, the study reveals that users of indoor tanning devices actually have a higher risk of developing melanoma than non-users.

What are free radicals?

Free radicals are highly reactive molecules that attack cells and damage collagen and elastin. They are triggered by pollution, sun, stress, smoke, oxygen, even the body`s own processes. Free radicals are believed to be partly responsible for again skin through a process called oxidation. A free radical, known as reactive oxygen species, attacks another molecule and steals an electron from it, setting off a chain reaction of free radical damage to cells. The free radical chain reactions that may overwhelm the natural antioxidant structured, consequently leading to the destruction of vitamin A,C,E, and other molecules. An antioxidant is a molecule that helps neutralize free radicals and protects skin by helping to block damaging reactions to skin cells. If the skin is rich in antioxidants then the levels of vitamin remain normal and the network antioxidants such as vitamin C & E, coenzyme Q10, recycle each other back into activity. This is why it is equally important to use with Shunly antioxidant vitamin C serum (B,C,E + Ferulic Treatment) to prevent and slow down the process of photo-aging. 

What’s so special about Zn20+ SPF40 Light Moisturizer?

This powerful Physical SPF contains as much as 20% of Zinc Oxide that is among the most effective and renowned actives delivering high levels of UVA-I & II & UVB protection. Zinc Oxide has been used topically as a skin protectant and wound healing agent for centuries. It is recognized as a mild antimicrobial agent that also has the ability to reflect infrared rays from the skin so it's not being absorbed into the skin as opposed to other sunscreen filters. Since Zinc Oxide resides on the surface, it doesn't irritate or produce any allergic reaction to the skin. On top of its active formula, this product's delicate creamy base makes it easy to apply, which is appreciated by those with Acne, rosacea and eczema skin condition.

What is ultraviolet (UV) light?

UV light is the radiation energy in the form of invisible light waves that is being emitted by both the sun and by tanning lamps. The sun discharges three types of ultraviolet radiation: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC). The UVC does not penetrate the upper atmosphere while UVA and UVB reach the earth. Research has shown UVB/UVA may cause skin damage. Tanning lamps also produce UVA and /or UVB. These artificial rays affect the skin in the same way as UVA and UVB from the sun.

What's the difference between UVA & UVB action on the skin? 

Ultraviolet A (UVA) rays are deeply penetrating skin aging rays that:

• Pass through the epidermis into skin dermis
• Contribute to visible signs of aging including wrinkles, loss of elasticity, and pigmentation changes
• Can be as harmful in January, as in July
• Are 50 times more prevalent than UVB rays and penetrate clouds and windows

Ultraviolet B (UVB) rays are the sunburn rays that:

• Penetrate superficially into the epidermis and cause sunburn
• Are of strength that varies depending on season or time of day
• Pertain in SPF (Sun Protection Factor) rating system for skin care

Are some sunscreen ingredients more effective than others?

Yes! Zinc Oxide and Titanium Dioxide. These two physical sunscreens are generally more effective than the others as they physically block out sun rays. They also provide protection by remaining on the skin and reflecting and refracting light. In contrast, chemical sunscreens are absorbed into the skin where they, in turn, absorb portions of the light spectrum. Physical sunscreens protect against a broad range of UVA and UVB light, are not harmful to the skin and are more effective than chemical sunscreen filters, which can break down in the sun. It depends upon the product. Check the label to make sure it blocks both UVA/UVB radiation. For best results, look for Zinc Oxide and Titanium Dioxide in the list of active ingredients. Zn20+SPF40 Light Moisturizer offers sunscreen filters against both UVA-I & II / UVB for all skin types, including ultra-sensitive skin such as acne, eczema, and rosacea.

How can I incorporate Zn20 + SPF40 Light Moisturizer into my existing skincare regimen?

Your eyes and neck are the focal points of the face and the one feature we most associate with personal identity. While repeated exposure to UV radiation results in premature aging of these areas, which encompasses a number of signs that reflect structural changes in the dermis. Documented research studies conclude proper antioxidant protection can visibly improve, protect, and reduce signs of photo damage to the skin. It is equally important to use with Shunly antioxidant vitamin C serum to prevent and slow down the process of photo-aging. 

Do I have to protect my skin if I spend most of my day in the office?

Absolutely! The minute you walk out from your house to the car, while you are driving, stop at the Starbucks for coffee, the walk from the car to office building, time to get your lunch from store, left the office to the car and drive to heading home while the sun still rise on summer time etc..
UVA rays are constantly present, no matter what season or the weather. They are so powerful that they also penetrate some clothing and even glass. You will always hit the UVB rays with all these routine activities from home to office every day. It is absolutely needed to protect the skin from sunlight and repair damage from sun exposure year around.

Do I have to use SPF in winter when there is no sun out?

Regardless of the season, hyperpigmentation, dark spots can get darker while redness can get worse. Therefore it is necessary to protect the skin from sunlight and repair damages already done due to sun exposure. Most of us don't realize the winter environmental light can be damaging to our skin cells and promote hyperpigmentation and dark spots as much as in summer time. UVA rays stay the same, all day, everyday, and all year long.
When the sky is cloudy or even overcast in winter without sun out, there is still a very strong UVA radiation that penetrates deep into the skin, damaging the cells. Even if you cannot see any damage right away, dark spots and wrinkles appearing years later are the results of such photo damage. UVA rays are constantly present, no matter the season or weather. They are so powerful that they also penetrate some clothing and even glass. On the other hand, UVB rays are the ones of which effects you can feel just after sun exposure – it feels like sunburn. Unlike UVA rays, these rays don’t always have the same strength but are responsible for causing most skin cancers. They're stronger in summer months, however, have the ability to reflect from the water or snow surface, therefore we recommend using SPF protection all year round, even when the weather is cloudy. Add sunscreen to your daily basis skincare routine all year round to protect the skin from environmental light and enjoy your youthful look longer.