Free shipping on all orders over $39

Lumixyl MoistureLock Sunscreen with SymHelios

Reviewed by Marta April 30, 2011 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.

You are leaving a comment on below...

My review

Reviewing >

8+7=
-or- Cancel my review
* Required Fields
truth in aging's five best

Truth In Aging's Five Best

The very best to choose from for your skin concerns.

Read More

truth in aging videos

Truth In Aging Videos

Helpful how-tos and reviews from Marta and friends.

Watch Now

meet our contributors

Meet Our Contributors

The TIA community consists of our trusted reviewers.

Meet Them

be inspired

Be Inspired

Inspiring thoughts and women who are aging gracefully.

Read More

  Loading...