You want something that someone can remember easily if the just hear it or see the name once. Insidious Beauty and Finesse Charm won't be easily remembered. I voted the Bombshell Guide. The first thing it made me think of was the Victoria Secret bombshell bra collection which makes me think "sexy." That is if "sexy" is what you are trying to go for with your website.
Those are all bad ideas. Sure they may sound nice and glitter-fied, but a website name should instantly reflect the topic which it covers and it should also be easily remembered (it's not a requirement, it's a suggestion to help returning visitors find your website again).
Also, you want to separate each word with a " - " (again not a requirement, it's a suggestion to help with search engine results)
So if you went with Health and Beauty, you'd want it to be www.Health-and-Beauty.com
And finally, I'd suggest you narrow your topic.. Health and Beauty is a large topic with high demand but even higher supply. Your website isn't likely to stand out in search engines when there is so much competition. You CAN do it. if you are really dedicated and passionate and like to write everyday. But it will mean 8 hour days writing articles and researching (so you don't spread unhelpful non-sense like.. carbs are better than fats, or other stupid myths like 6 meals a day speeds your metabolism)-- and you'll have to do this for about 6 months, or 2 years if you put in 2 hours a day. I assure you, that YOU can do it. But it takes a lot of time and a mental focus that can last years. You will not be a success over night. The people who succeed are the passionate people who stay focused and didn't give up.
And finally, f you're still focused on doing such a broad niche.. I'd suggest www.beautiful-and-healthy.com You can go with something shorter, but I'd suggest you still keep it simple. No need for flashy adjectives. But I'd really suggest narrowing your niche down to something smaller (e.g. just fitness, just cosmetics, or just yoga or just cycling, etc..)
Best of luck! I hope you succeed in whatever path you decide to take ^^
gotta admit the bombshell guide is a bit catchy, however it seems to have sound like it's geared towards women... How many guys are going to go to that name?
Honestly when I look for information, I tend to look for something that sounds like the official place to look. Golf.com CNN.com menshealth.com ect. you get the idea. You might want the website to sound official. Granted all in all it's just the address, once you hit the link the real impressions are going to be made, main thing is get exposure and tons of it