Vionnet Backstage at Paris Fashion Week Spring Summer 2013 Collections

We aren't the only ones who've fallen under Sunday Riley's spell. Now that the sun has finally got its' hat on (hip, hip, hip, hip hoo-ray) the blogo-sphere appear to be ditching their foundations in favour of lightweight, tinted moisturisers and, their weapon of choice? Why, it's Sunday's Effortless Breathable Tinted Primer #natch.

Effortless? Check. Breathable? Check. Complexion perfecting? Most definitely - but with whisper-weight coverage that grants you undetectable enhancement.

SR Primer - SizedThe beauty genii at Into the Gloss got all Elizabeth Barrett Browning in their praise for this skin-miracle.Sunday Riley Effortless Breathable Tinted Primer, how do we love thee? Let us count the ways...”

“A long-running staple of Emily’s [Weiss - founder of ITG and connoisseur of all things make up] medicine cabinet, the über-sheer, slightly tinted mousse uses RejuvenOx (scary as it may sound, it’s actually a non-hazardous, colorless, odorless material used to help stimulate your skin’s natural oxygen absorption) to keep your skin breathable and moisturized.

The I-don’t-know-how-she-does-it glow can be attributed to mica, which illuminates your complexion without imparting a teen-queen sparkle or pearlescent effect.

And a little closer to home, Ruth Crilly a.k.a A Model Recommends cited this as one of her “favourite luxury beauty treats for the summer” saying:

“...I think this will be my favourite primer for this summer [...] it's really, really super lightweight, doesn't have any of that almost smothering feel that you get from some very silicone heavy primers, and it's also tinted so it does quite a good job of colour-correcting.

“It just leaves a really, really perfect base.

You can watch Ruth's video - there's a lovely before and after - and discover her other summer must-haves here.

Stella McCartney backstage at Paris Fashion Week Spring Summer 2013 Collections