Hiya
self-tanners are GRATE and you don't have to end up looking like Posh.
The Rolls-Royce option would be to go to
BeautySpy in the Fünf Höfe and have them apply
St Tropez.They also sell the products as does
Douglas.It can be a bit fiddly but they do give a good colour (the application differs from other products in that you slap it on widly and then buff off the excess, do not use near white fabrics esp. sheets).
Another big brand is
Fake Bake.Clarins self-tanners are excellent and less fiddly than the St Tropez. Some salons offer applications of them too but they are pretty easy to use. If they are good enough for Heidi Klum, who uses them too, then they are good enough for me. I like the Sheer Bronze Self-Tanning Gel, it doesn't whiff too much and gives a nice light colour which you can then build as necessary.
SunDash is the brand name for spray-on self-tanning cabins which are located in some Ihr Sonnenstudio branches.
For the cheap and cheerful option,
Nivea isn't that bad either.
As all self-tanners contain the same active ingredient (DHA - Dihydroxyacetone), the choice of product really depends on what you personally like.
I like Clarins so I use Clarins.
DHA reacts with the top layer of the skin and turns brown. It is entirely safe and has been used for decades. It does not protect from the sun though.
Now some tips:
Scrub, scrub, scrub! Did I mention exfoliation?

No smooth skin means no smooth result. Self-tanning on irritated skin stings so don't "tan" immediately after shaving/waxing.
If you have particularly dry areas of skin, use bodly lotion sparingly on those areas only.
Buy single-use latex gloves to do the application.
Have the radio on in the bathroom, well you have to let it dry before getting dressed...
Apply as directed, St Tropez application is different (streaks are permitted as you buff it off), think about using a tinted product if you are nervous about streaks.
Wash your hands particularly around the nails and palms (you can stroke the back of your hands lightly across another area with product on to slightly dye the backs of your hands though).
Let it dry off a little (read the leaflet!).
Unless you are using something like the ST Tropez moisturiser, avoid using AHA/BHA/Fruit Acid creams over a fake tan as they peel the skin, taking the dye with it.
If something goes wrong: scrubbing the area will help, St Tropez also makes a Self-Tan Remover. Otherwise Clinique toner or even acetone-based nail varnish remover (if you are beyond desperate!) works.
Hope that this helps, I'll be back on the Clarins next week

Katrina
PS Do not kick off the sunbed discussion again please - if you want to know some views about them please use the search function.