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Lumixyl MoistureLock Sunscreen with SymHelios

April 30, 2011 Reviewed by Marta 9 Comments

I’m on something of a Lumixyl roll right now with the latest being the MoistureLock Sunscreen SPF30 ($58). Lumixyl’s sunscreen is based on a new and very interesting sun protection active, not surprisingly since they utilize a Stamford University developed a cutting edge skin lightening ingredient in the Topical Brightening Crème.  This sunscreen active, benzylidene dimethoxydimethylindanone is a mouthful that, thankfully, also goes by the name of SymHelios.

SymHelios specifically helps protect against UVB rays and the mechanism by which it does this is fascinating (at least to nerdy types like me). Lumixyl isn't the only skincare company to have tracked it down - you can also find it in products by DermaDoctor and Glymed.

UVB rays are toxic and cause long term skin damage because they cause an amino acid, tryptophan, to form a toxic substance. This toxin binds to a protein in our bodies called the aryl hydrocarbon receptor (AhR) where it wreaks havoc by destroying collagen and  elastin, creating oxidative stress and potentially leading to skin cancers. Enter SymHelios. This binds to the AhR, preventing UVB radiation.

Now it must be understood that SymHelios is not a UV-filter and does not protect against sunburn to the skin. Consequently, it needs to be combined with a UV filter. Here, in Lumixyl’s sunscreen, it is paired with titanium dioxide.

At this point, I need to say that titanium dioxide, although much more desirable than a chemical sunscreen active, does have its issues. For a start, TD doesn’t just reflect rays, it also absorbs them. And this means that, like chemical sunscreens, TD is a photosensitizer. If it is absorbed by the skin, it can result in an increased production of free radicals. The Australian government, however, issued a report saying that TD isn’t readily absorbed by the skin. I should note that Lumixyl describes its titanium dioxide as micronized (unike nanoparticles, micronized are usually too large to be absorbed).

Lumixyl did not formulate MoistureLock Sunscreen to be chemical free (although apart from phenoxyethanol, pentylene glycol and silicones, there isn’t anything especially worrisome), but they did make a big effort to come up with a mineral sunscreen that doesn’t leave a ghostly white sheen to the skin. Sunday commented that she did find it a bit too chalky, but my fair skin found that the cream disappeared with minimum rubbing in seconds. Followed with a slick of Osmotics Inner Light I’m good to go. Importantly, I have so far (about a week of use) had no breakouts or other reactions. Lumixyl MoistureLock can also be bought in the TIA shop  as part of the Lumixyl travel set.

Active Ingredients: Titanium Dioxide 8.40%

Inactive Ingredients: Cyclopentasiloxane, Water (Aqua/Eau), PEG/PPG-18/18 Dimethicone, Aluminum Starch Octenylsuccinate, Pentylene Glycol, Aluminum Hydroxide, Phenoxyethanol, Sodium Chloride, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Caprylyl Glycol, Stearic Acid, Ethylhexylglycerin, Hexylene Glycol, Disodium EDTA, Benzylidene Dimethoxydimethylindanone

  • May 30, 2011

    by lisa

    thanx for the advice

  • May 26, 2011

    by Julie Rosier

    I have heard about this from a friend but coudn't try it as she lives in another state. Hear it's great! Enter me as well!

  • May 25, 2011

    by Francesca

    I would be incredibly happy to try that! Im a red head who lives on the water, i need it :)
    Good luck to all & thanks!

  • May 25, 2011

    by Tracy

    would love to try it. always looking for a good sunscreen!

  • May 25, 2011

    by Cat

    I don't think there's even a prayer of settling for an "it" product anymore. There are just too many folks out there cleverly trying to solve our recurring needs for reliable workhorse beauty products, and enough of us out there to keep trying everything that comes down the pike so to speak. In order to stop all the damaging effects of sun overexposure, I need something that keeps me from burning, that can be reapplied conveniently in the field and is comfortable when I have it on, i.e. not too oily or smelly and of course not pale or pasty. A daily sunscreen need not be SPF 500 but 15 or 20 is about right. I will be putting my sampler of ColoreScience Sunforgettable SPF 30 to the test this weekend with three solid days at the race track in Indianapolis. I can't wait to share my results.

  • May 25, 2011

    by Jennifer

    Since I am almost done trialing the YBF Balance product & will be writing a review next week, I'm ready to take on a new product! The last line of your review is what convinced me to try it, as I am prone to "issues" with many sunscreens & was delighted to read that you haven't had any! I have been using Soleo, which, although it has been great for my body, has been too oily (albeit good oils) for my face, causing me to break out after 3 days of use.

  • May 25, 2011

    by Chris

    Hi! Ok, I have tried so many facial sunscreens and still have not found "IT". I have a drawer full of half-used sunscreens that were meant for my face but have been relegated to a "body only" sunscreen because of their whitish cast, breakout potential, greasiness, etc.
    I've recently been using Josie Maran Protect Daily Sun Protection Argan Oil Infused SPF 40+, and I have to say I like everything about it...except the price ($38 for 2 ounces) not so much. I tend to use a fair amount of sunscreen on my face and chest, so I go through it pretty quickly. I was just about ready to order the Nutra Lift sunscreen from the TIA shop (a better value at $23 for 4 oz. - and more natural ingredients to boot) when I saw this newsletter arrive.
    I would love to give the MoistureLock Sunscreen a try and report back on it. After which I would still probably try the Nutra Lift sunscreen (and report on that as well if you'd like), because, well, just because...

  • May 25, 2011

    by mrsshukra

    I would really like to try this sunscreen!

  • May 25, 2011

    by debs

    would love to try it

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