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Posted 20 hours ago

Trespass Lip Balm SPF 30 includes Carabineer

£9.9£99Clearance
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It gives very good protection acrossthe whole UVA range (310-400 nmthat is both UVA1 and UVA2) with a peak protection at 360 nm. The problem with it, though, is that it is not photostable and degrades in the sunlight. Wikipedia saysthat avobenzone loses 36% of its UV-absorptioncapacity after just one hour of sunlight (yep, this is one of the reasons why sunscreens have to be reapplied after a few hours). The cosmetic's industry is trying to solve the problem by combining avobenzone with other UV filters that enhance its stability (like octocrylene, Tinosorb S or Ensulizole) or by encapsulating it and while both solutions help, neither is perfect. Interestingly, the combination of avobenzone with mineral sunscreens (that is titanium dioxide and zinc oxide) is not a good idea. In the US, it is flat out prohibited as avobenzone becomes unstable when combined with mineral sunscreens.

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Regarding photostability,Diethylhexyl Butamido Triazone is super photostable. It looses10% of its SPF protection abilities only in 25 (!!) hours when 2 hours counts already as "photostable" in the world of chemical sunscreens. A hydrocarbon-based emollient that can come in different viscosities from silky-light to luxurious, rich. It forms a non-occlusive film on the surface of the skin. It's the yellow, solid stuff that you probably know from beeswax candles. It's a natural material produced by honey bees to build their honeycomb.I have never used a lip balm that leaves my lips feeling better once the balm is gone. One day later, and my lips are dry and flaky again — not up to making particularly kissable or poutable moues, which is what, after all, most products promise. For years I’ve wondered — does lip balm actually work?

Lip Balm | Merchandise Ltd Lip Balm | Merchandise Ltd

It's a waxy emollient with a melting point near to skin temperature. It gives body and consistency to the formula and leaves a velvety feel on the skin. It’s a common fragrance ingredient that smells like lemon and has a bittersweet taste. It can be found in many plant oils, e.g. lemon, orange, lime or lemongrass.A super common and cheap fragrance ingredient. It's in many plants, e.g. rosemary, eucalyptus, lavender, lemongrass, peppermint and it's the main component (about 50-90%) of the peel oil of citrus fruits. No matter the origin, in small amounts (up to 1%) it’s a nice, gentle preservative. Has to be combined with some other nice preservatives, like potassium sorbateto be broad spectrum enough. A physical/inorganic sunscreen with pretty broad spectrum (UVB and UVA II, less good at UVA I) protection and good stability. Might leave some whitish tint on the skin, though.

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