By ABBY ELLIN

After the band was chosen and the napkins were color-coordinated to match her shoes, Kacey Knauer, a bride-to-be, had another crucial matter to address: her skin, and the skin of the nine women in her bridal party.
So Ms. Knauer, the 35-year-old owner of TempTrends, a staffing agency in Manhattan, invited her nearest and dearest - including her mother and future mother- in-law - for a night out at the TriBeCa MedSpa, replete with mimosas and cupcakes. An aesthetician assessed each woman’s face and devised a treatment plan: a chemical peel, or an injection of wrinkle-filler. Or maybe, for a bridesmaid with age spots, a series of Fraxel laser treatments, at $1,200 per session .
For Ms. Knauer, who will be married in December, cosmetic interventions for herself and her entourage are as vital as the centerpieces or food. “If I were 25 or 26 and getting married, a bracelet, necklace or matching earrings would be fine,” she said.
But at 35? “Giving them a bracelet isn’t as special as spending an evening together. Plus, as you get older, everyone is more conscientious about their skin and appearance. Giving them something for themselves - as opposed to something that they’ll never wear again - is more meaningful.”
Some brides pick up the tab for their attendants . In other cases, bridesmaids are surprisingly willing to pay for cosmetic enhancements. “Most women, when they come in here, they want it,” said Camille Meyer, the owner of TriBeCa MedSpa. “They know they’re aging.”
But for every accommodating pal, there’s another who feels surgery is beyond the duty of a bridesmaid. Becky Lee, 39, a Manhattan photographer, declined when a friend asked her and five other attendants to have their breasts enhanced. “We’re all Asian and didn’t have a whole lot of cleavage, and she found a doctor in L.A. who was willing to do four for the price of two,” said Ms. Lee, who wore a push-up bra instead.
This kind of cajoling is a recent development on the wedding front.
Marie Scalogna- Watkinson, the founder of Spa Chicks on-the-Go, a mobile spa based in New York, said she receives five to seven calls a month from brides seeking Botox or Restylane for their bridesmaids. Five years ago, such requests were unheard of, she said.
Susie Ellis, the president of SpaFinder. com, a site that lists 4,500 spas worldwide, estimated that bridal party tuneups have increased roughly 25 percent in the last two years.
In June, Jennifer Peterson, 31, a production director in Los Angeles, and eight friends indulged in Botox, Restylane, massages, facials and microdermabrasion at Infinity MedSpa in Valencia, California. Her friends chipped in for her treatments, but she is considering giving them each a $100 certificate to the spa - a gift she is sure they will appreciate. She said, “Everybody does Botox out here.”