Beauty on the South Fork

    Beauty events are big this season. Following Renee Stern’s (of Renee Stern Cosmetics) visit to White’s Pharmacy two weeks ago to discuss eye colors, Rebecca Underdown of the McDermott family in East Hampton hosted the East Coast launch of her Essencia organic skin care line at Coastal Home in Bridgehampton last Thursday.
    Ms. Underdown, who now lives and works as an acupuncturist and skin rejuvenation therapist in La Jolla, Calif., said in a release that, “The nation is facing a demand for holistic skin care.” Many companies claim to offer organic products, but are actually using fillers, preservatives, and synthetics while marketing their wares as organic, she said.
    Ms. Underdown’s Essencia products are made from ingredients from New Zealand and Hawaii, “without using additives or chemicals.”
    Still in the realm of beauty, Friday brings Erika Katz, a Southampton resident, to BookHampton in Southampton at 5 p.m. with her book, “Bonding Over Beauty: A Mother-Daughter Guide to Self-Esteem, Confidence, and Trust.” During the book signing Ms. Katz — a beauty and parenting expert who has appeared on “The Doctors,” “Fox News Live,” and the “Today” show, among other television shows — will offer a free back-to-school beauty demonstration.
     A former child model and actress, Ms. Katz has appeared in over 100 commercials, print ads, and films. Now the mother of a “tween” girl, Ms. Katz writes a popular beauty blog, beprettygirl.blogspot.com, for moms with daughters in those preteen and just-teen years.
    On Saturday, Erica Domesek, the author of the “P.S. I Made This” book, will be at Ruschmeyer’s on Second House Road in Montauk from 3 to 6 p.m. for a do-it-yourself day of beauty in a summer-camp setting.
    Ms. Domasek’s motto is “I see it. I like it. I make it.” Her Saturday interactive workshop will have attendees “beauty crafting” hair wraps, nail art, and personalized makeup cases. Guests will also get goodie bags with products from Maybelline New York, Garnier, and essie. The event is free, but those planning to come are asked to R.S.V.P. to DIYbeauty@mmlpr.com..