Ooh La La! La Roche Posay has tickled our fancy today at Beauty by the Geeks. We wanted to delve a little deeper into their Effaclar Duo[+] anti-blemish cream, designed for oily and blemish-prone skin…

The Claims
Some of us are unlucky enough to be caught in the vicious cycle of oily skin and blemished (and with it, blemish marks!). It all starts with clogged pores, as a result of excess oil produced by the skin combining with dead skin cells to form a plug in our pores. La Roche-Posay claim to stop that cycle with this anti-blemish cream.

With some promising-looking ingredients written on the side of this product, it’s time to get Geeky!

The Science behind the Bottle

Niacinamide


We Geeks are super excited about one ingredient… niacinamide! Niacinamide (and its neighbour nicotinic acid) is commonly known as vitamin B3, and is a hot ingredient on the beauty scene.  Niacinamide has been clinically proven to improve skin appearance by reducing fine lines and wrinkles, hyper-pigmented spots, red blotchiness and skin sallowness. Niacinaminde does this by stabilizing the epidermal barrier function (that’s the skin’s barrier function), reducing water loss and improving moisture content of the upper skin layers.

Niacinamide speeds up the production and specialisation of skin cells called keratinocytes, which can improve the surface structure of skin. This is beneficial for a number of skin care woes, including ageing skin and uneven skin tone, and the molecule has anti-inflammatory properties too! I Maybe most interestingly, it has benefits for hyper-pigmented skin, through blocking normal the transport of the skin’s pigment melanin. Savvy, eh? Let’s give niacinamide a great big round of applause!

Linoleic acid


Yet again, we hear the chimes from linolenic acid; we just can’t get enough of its moisturising goodness!  It is an essential fatty acid (meaning it cannot be made by the body itself) and is used by to form lipid (fatty) components of cells membranes, including skin cells. But why are we finding a moisturiser in a product for oily skin? Well, these fatty acids are vital for maintaining healthy skin and an effective skin barrier, and linoleic acid also aids the inflammatory response in wound healing process. Not bad!

LHA


Beta lipohydroxy acid (LHA) is a derivative of the well-known salicylic acid. It interacts with the layers of the stratum corneum (the outermost layer of skin), focusing on the follicle and epidermis. LHA treatment softens the skin by helping exfoliate the top layers of rough skin away. It also helps tackle over-pigmented skin areas (hyperpigmentation), and has a lower potential to irritate the skin than its neighbours, the alpha hydroxyl acids, which the savviest of you Beauty Geeks will have heard of! We also found that LHA is “comedolytic”. Comedolytic means it helps get rid of comedones (blocked pores that are one of the first stages of acne development). It also helps keep bacteria in blocked pores at bay – these bacteria cause the angry redness of a spot, and so this nifty molecule really packs an anti-acne punch!

Zinc PCA


Zinc 1-pyrrolidone carboxylate (Zinc PCA for short!) ticks many Beauty Geek boxes! It had been found to block activation of proteins called MMPs by UVA rays. MMPs are involved in degradation of structural collagen , and their activity is associated with skin ageing caused by the sun (known as photoageing). Not only can it reduce these age-promoting effects, but it also increases the production of type 1 collagen (that’s the most important collagen that makes up our skin). This makes Zinc PCA on a pedastool anti-skin ageing agent! But why is it here in Effaclar Duo[+] anti-blemish cream? Zinc PCA can help keep that unwanted “shiny” look away, as it’s been reported to reduce the production of excess oil by the skin. Good news all round, especially for this products claims!

And Voila! On to The Verdict…


We are very impressed with the ingredients that La Roche Posay has managed to pack into this tube, tackling such a wide range of beauty blunders with savvy science. There seems to be a good amount of research to support these ingredients for the product’s anti-acne claims. With LHA fighting comedones and bacteria, zinc PCA reducing oil production itself and niacinamide tackling any hyperpigmentation after blemished, this product could be a real dream! With a good response from customer reviews as well, we’re giving La Roche Posay’s Effaclar Duo[+] anti-blemish cream a big thumbs from us!

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AQUA / WATER, GLYCERIN, DIMETHICONE, ISOCETYL STEARATE, NIACINAMIDE, ISOPROPYL LAUROYL SARCOSINATE, SILICA, AMMONIUM POLYACRYLDIMETHYLTAURAMIDE / AMMONIUM POLYACRYLOYLDIMETHYL TAURATE, METHYL METHACRYLATE CROSSPOLYMER, POTASSIUM CETYL PHOSPHATE, ZINC PCA, GLYCERYL STEARATE SE, ISOHEXADECANE, SODIUM HYDROXIDE, MYRISTYL MYRISTATE, 2-OLEAMIDO-1,3-OCTADECANEDIOL, NYLON-12, POLOXAMER 338, LINOLEIC ACID, DISODIUM EDTA, CAPRYLOYL SALICYLIC ACID, CAPRYLYL GLYCOL, XANTHAN GUM, POLYSORBATE 80, ACRYLAMIDE/SODIUM ACRYLOYLDIMETHYLTAURATE COPOLYMER, PENTAERYTHRITYL TETRA-DI-T-BUTYL HYDROXYHYDROCINNAMATE, SALICYLIC ACID, PIROCTONE OLAMINE, PARFUM
Read more at http://www.boots.com/en/La-Roche-Posay-Effaclar-Duo-40ml_1440758/#eFStuMLfAuXdigvg.99