I'm in the minority here, but as I'm told often that I look young for my age... I'll go with Capricorn asc.
It's not just that I'm told I look younger now (27) but when I was 13 I was told I looked a lot older.... I've actually read somewherer that capricorns look older when they're young and look younger when they grow old. y'know, in the same the way wine maturing makes it more better/tasty?
I think the "mechanism" behind it, so to speak, is that capricorn, and saturn-related aspects, are very durable and have this sustainable ability to them that prevents them from burning out very fast and show life's turmoils on their faces. Capricorn is also related to skin so a postive aspect to the ascendant will make you glow
On the other hand, since we are talking about saturn, the ruler of time, it could also appear very old.... maybe it depends on aspects to it as well. I've got sun sextile the asc and pluto trines it (albeit in a wider orb)
Other things in a chart that could mean aging well:
- a gemini ascendant=fountain of youth
- aries and leo ascendant= aries is the baby of astrology, filled with vigor vitality and leo relates to the heart so maybe that encourages a healthier condition, which in turn, helps with a youthful appearance
- virgo sun, moon well aspected to mercury and any good aspects to the 6th house= excellent diet regime and health