Instead, her secret is all about the pre-vacay fake tan... plus plenty of protection while she's away. Smart girl.
Ashley took to Instagram on Wednesday before jetting off from London Heathrow to the Greek island of Mykonos to reveal her tanning secrets to her devoted followers...
"Off to Mykonos - see you soon sunshine!" the former Made In Chelsea star posted.
"Always been a factor 50 girl so managed to squeeze in a spray tan before leaving, thank you for my healthy glow @fakebakeunited @secretspauk."
Now these are the kind of safe tanning rules we should all live by, don't you think?
1. Treat yourself to a pre-hols spray tan – using the fabulous services of secretspa.co.uk if you're in the London area, like our Ashley.
Secret Spa is a luxury mobile beauty service that basically brings your treatment (facial, mani, tan etc) to you – whether you're at home, in the office or even staying in a hotel. Clever huh?
Not in London? Not to worry, Ashley's tan of choice, Fake Bake has plenty of mobile therapists and salons nationwide. Simply pop over to fakebake.co.uk for more details.
And if you prefer to tan yourself at home, our current top two tanners are: Bondi Sands Self Tanning Mist in Light/Medium, £14.99, boots.com and St. Tropez Self Tan Express Bronzing Mousse, £33, boots.com.
2. OK, so now you already have a gorgeous glow, you don't need to fry your face and body in the sun 24/7. Fact. And if you really can't resist a good sunbathe, do as Ashley does and protect your skin at ALL times with a high factor, broad-spectrum sunscreen.
We love: Eucerin Body Extra Light Sun Lotion SPF 50, £18.50, boots.com and Vichy Idéal Soleil Mattifying Face Fluid Dry Touch SPF 50, £16.50, boots.com.
Next, how to get Ashley's bikini body to match? If only that was so simple...
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