Spring/summer season at Fashion Week is notorious for its no-make-up looks. The fresh-faced glows, the oh-so slightly dewy cheeks and rosebud mouths.

But this September at London Fashion Week, there was some serious rule-breaking backstage. Unconventional beauty looks became the talking point; think purposefully-placed perspiration on faces and perfect hair with added unruly kinks.

In short, this was beauty competing with the clothes for front row attention.

Feeling rebellious? Read on for a touch of anarchic spring/summer 15 beauty.

INSTA FRECKLE

Faux freckles are nothing new backstage. They're the instant signifier of youth and freshness, but this season the tan and make-up teams went dotty for them.

At Preen, M.A.C's Val Garland dabbed on freckles using five different shades of eyeliner, for a convincing sun-kissed effect.

St Tropez's skin-finishing squad continued the dot-to-dot randomising on the body, calling it the 'beachside freckle tan': " To tie in with the make-up, we added just a breath of base colour to the body, then took the delicate dusting of freckles down from the face onto the chest, arms and legs," said Nichola Joss, St.Tropez g lobal tanning and skin-finishing expert.

GLITTER BUG

It's never too early for a disco backstage. It was a case of all that glitters at House of Holland before the sun had even set, with models' eyelids and nails coated in the sparkly stuff.

The theme was status-seeking groupies, and M.A.C's Lucia Pica described the look as "somewhere between Debbie Harry and The Runaways".

Chunky, silver M.A.C Pro glitter was applied densely to eyelids and diffused with a brush for a lived-in look. Nail artist Sophy Robson echoed the hi-shine, by layering glitter over a baby pink polish on fingernails and toes, inspired by one of the holographic sandals in the collection.

KINKY HAIR

Sometimes, perfection lies in the imperfection.

Take the ruler straight hair with a twist at Thomas Tait. Perfectly straight and strict from the front with a centre part, the back unexpectedly featured a 'crease' midway down the lengths to hint at architectural foundations. The 3D kink effect was achieved using a ruler horizontally underneath the hair, clamped firmly with straightening irons.

Duffy says: "Taking inspiration from one of the key silks in Thomas' collection, we decided to add the crease to the otherwise sleek style - it's a progressive look with an underlying easy elegance."

SWEAT CHIC

Let the Indian summer continue, because sweat is where it's at for next season. Wet-look hair is a common fixture backstage for a sleek look, but at Teatum Jones, the concept extended to skin.

M.A.C's Andrew Gallimore painstakingly applied droplet-look stickers onto models' hairlines to mimic beads of sweat on the skin.

The dripping-with-sweat vibe extended to hair, with textured cornrows created by Bianca Tuovi for Bumble and Bumble. Bb. Gel was painted into the partings to create extra shine and definition. Perspiring just got cool for spring/summer 15.

LILAC MUSE

Punchy colour is what you come to expect from designer Matthew Williamson's clothes, but this season, it was all about dramatic purple eyes.

The look was centred on lilac lids for a n od to Seventies glamour, specifically shots of model Marie Helvin in David Bailey's Chasing Rainbows book.

Make-up maestro Charlotte Tilbury for Benefit, used pinky-purple cream eyeshadows washed across the eyelids: " My vision was hibiscus flowers bursting from eyes, as if they were bejeweled and bathed with a gorgeous pink light."

TRIED & TESTED

:: Lisa Haynes gives her hair curve appeal with ghd's latest anti-straightening wand

When ghd, king of the straightening iron, launches a new Curve Collection for waving, the beauty world listens. There are four new wands available, all sleek and black and shiny. But while the two Tongs and Creative Curl Wand look similar to other tools I have in my curling kit, the Classic Wave Wand immediately stands out.

Firstly, it has an oval-shaped barrel, designed to create deep, glamorous waves that are virtually impossible to achieve with a home blow-dry. With Veronica Lake as my muse, I switch on the new ghd and am met with a satisfying trill and flash of white light around the power sign. There's another sound seconds later, to inform me that the wand has reached optimum curling temperature, 185-degrees C.

I hold my hair around the smooth barrel for around eight seconds, and slowly release to unveil 'the' most perfect, cascading wave. This isn't a curl, or boho texture, it's the wave I have been trying to create for the last 10 years. The tri-zone ceramic technology means there is no snagging or pulling. It's basically the Rolls-Royce of waving wands.

The same week, I discover the Classic Wave Wand being used backstage at London Fashion Week for House of Holland's show. Adam Reed, ghd global brand ambassador, gives me a model demo on how to create a lived-in wave, dubbed the 'run-wave'. By rolling the wand up and down each section of hair, backwards and forwards, the 'classic' wave is instantly transformed to mussed-up bends.

With texture this good, I may well be waving goodbye to my straight hair forever.

:: ghd Curve Classic Wave Wand Set, £110 (www.ghdhair.com)

BUY IT NOW

Diamonds are forever, or, for as long as a Models Own mani lasts, at least. Their new Diamond Luxe range contains ultra-fine diamond dust for a sparkly finish. There are 10 opulent shades to choose from, priced £4.99 each. Available exclusively online at www.modelsownit.com from September 19, and from Superdrug stores nationwide from September 24.

BEAUTY BULLETIN

:: AGEING ANGST

One in three British women feel under pressure to look young. The average age women are most worried about how old they look is 39.5 years, according to a survey by Sanctuary Spa Wonder Oil Serum. One fifth worry about their age every day, and 41% wished they looked younger. Wrinkles (70%) were voted the top indicator of turning old.

:: RECESSIONISTA ALERT

Get an instant face lift for £12.99. Transformulas Face Contour & Tightening Creme is available for 65% off the RRP at TJ Hughes, saving £23.96. Other Transformulas products are also on offer, priced £12.99-£14.99 (www.tjhughes.co.uk).