Red lipstick is something that exudes glamour, it is a classic item in vintage looks and is super sexy as well. But I understand that for some people it can be a scary prospect to wear a strong red lip and you may be unsure of the perfect shade of red for you. I hope this helps you pick the perfect shade of red for autumn.
If you have fair skin then you should opt for a cool, blue based red it will go perfectly with a milky complexion. Something like Maybelline's Colour Sensational lipstick in Fatal Red, or MAC's sheer supreme lipstick in New Temptation. L'Oreal colour riche serum lipstick in True Red would also be another good option.
Medium tanned skin would suit something a little warmer, more of a berry red with yellow undertones. MAC's Lady Bug would work well, as would Maybelline colour sensation in Hollywood Red or L'Oreal colour riche intense lipstick in Red Passion.
If you have dark skin the you can carry off more purple based reds, something really deep in colour works well with dark skin and looks really beautiful. L'Oreal colour riche creme in Stick Plum would look good, as would MAC's Hang Up, or Clarins joli rouge lipstick in Plum.
If a lipstick sounds like a step too far for you and you would rather a gloss then apply the same rules to the colour selection but it won't be as intense, and is a good way of getting used to wearing more colour on your lips before taking the plunge into red lipsticks. Something like Bourjois effect 3d lipgloss would be a good starting point as it gives just enough colour but not too powerful.