Like the old saying goes, she who has good hair and good girlfriends is truly blessed. Wait, that's not an actual proverb? No matter what, it's without-a-doubt true, and we love that a big beauty brand is getting behind it.

Funny lady Alyson Hannigan is the just-announced ambassador for Head & Shoulders and along with her hair-duties, she's helping women fight head-scratching social situations and relationship questions. The Good Girlfriend Guide, to be released this November, will be an e-manual anthology of woman-to-woman advice and chatter, from the seers that are our best friends, sisters, and moms. If you think you've got good tips to share, check out the brand's Facebook page and share; fifty people will have their advice published, and five women will be invited to attend the V.I.P. book launch in Los Angeles with Alyson.

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