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Panthenol

Panthenol is the alcohol analog of pantothenic acid (vitamin B5). Therefore it is also called provitamin B5. In organisms it is quickly oxidized to pantothenate. Its chemical formula is C₉H₁₉NO₄ or HO-CH₂-C(CH₃)₂-CH(OH)-CONH-CH₂CH₂CH₂-OH. It comes as a white or creamy white crystalline powder with slight characteristic odor. It is well-soluble in water, alcohol and propylene glycol, soluble in ether and chloroform, and slightly soluble in glycerin. more...

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Pamelor

Parnate

Patanol

Pavulon

Paxil

PCE

Pentaerithrityl tetranitrate

Pentasa

Pentosan polysulfate sodium

Peridex

Pitocin

Plavix

Plendil

Pletal

Polyestradiol phosphate

Polymox

Portia

Pyridostigmine bromide

ViroPharma Incorporated

Its CAS number is 81-13-0 and its SMILES structure is =CC(C)(CO)C(C(=O)NCCCO)O.

Panthenol comes in two enantiomers, D and L. Only D-panthenol (dexpanthenol) is biologically active, however both forms have moisturizing properties. For cosmetic use, panthenol comes either in D form, or as a racemic mixture of D and L (DL-panthenol).

In cosmetics, panthenol is a humectant, emollient and moisturizer. It binds to hair follicles readily. It is a frequent component of shampoos and hair conditioners. It coats the hair and seals its surface, lubricating them and making them appear shiny.

In skin cells, panthenol is absorbed and metabolized to pantothenic acid; it incites new cell growth, binds water, and acts as a moisturizer. In hair, it serves only as a moisturizing coating and does not undergo modification.

In shampoos and conditioners, panthenol is usually present in concentrations of 0.1-1%. In ointments it is contained in concentrations of up to 2-5% and is used for treatment of sunburns, burns and minor skin disorders. In such mixtures it is sometimes used together with allantoin.

Other names for panthenol are:

Butanamide, 2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethyl-, (R)-
Butyramide, 2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethyl-, D-(+)-
Butanamide, 2,4-dihydroxy-N-(3-hydroxypropyl)-3,3-dimethyl-, (2R)-
D-Panthenol
Dexpanthenol (DCIR)
Dexpanthenolum
Panthenol
Propanolamine, N-pantoyl-
d-Pantothenyl alcohol

Read more at Wikipedia.org

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Look good on the go: tips for travelers on how to banish puffy eyes, dry skin, frizzy hair and other beauty woes
From Shape, 12/1/04 by Daniella Brodsky

Traveling any time of the year--and particularly during the holidays--is enough to make even the most relaxed among us look frazzled and feel like we've seen better days. To the rescue: these rapid radiance- and sanity-restoring tips for before, during and after your trip, from the people who know best--top hotel and airport spa directors. The emphasis here is on simplifying and de-stressing, so wave goodbye to that weary traveler staring back at you in the mirror!

Fight stuffy air with aromatherapy

"When you fly, recirculated air can cause sinuses to feel stuffed up," explains Marilyn Tomaso, spa director of D-parture Spa at Newark Liberty International Airport in Newark, N.J. What can help: invigorating oils delivered with massage or steam.

* On the go Rub a drop of peppermint, rosemary or sage essential oil onto temples with fingertips; at your destination, add 10 drops of oil to a warm tub, making sure to close the bathroom door to allow nasal-cleansing steam to build up. (You can also try an essential-oil blend like E'SPA invigorating oils, $35; 202-787-6100.) Even if there's only time for a quick post-travel shower, you can still nab the benefits by using Jurlique Aromamist Skin Refresher Travel Blend ($24; jurlique.com), a mix of bergamot, grapefruit and lavender essential oils, which can be sprayed all over to invigorate.

* At the spa While at Newark Airport's B or C terminals, opt for Dparture Spa's Sinus Relief Facial (60 minutes for $75; 973-565-9900); a blend of essential oils is used during the pore steaming and facial massage to help clear nasal passages.

Boost skin's moisture for a radiant glow

Another unfortunate effect of plane air: dry skin. Step up your moisturizing routine before and during travel to feel more comfortable and look better. "The only way to get a dewy, beautiful look from makeup is to start with well-hydrated skin," says Los Angeles-based makeup artist Shalini Vadhera, who works on CBS's The Early Show with well-traveled clients who often come straight from the landing strip to the set. Vadhera suggests sleeping with a hydrating mask on skin the night before you travel (best bet: Chanel Precision Continuous Hydrating Mask, $32.50; gloss.com). Intensify the impact of such products by prepping skin with an exfoliator (sloughing off dead cells allows moisturizers to better hydrate the skin); try Biotherm's Biosource Clarifying Exfoliating Gel ($16; biotherm-usa.com) with algae powder to help polish away impurities and soybean extract to soften skin and get it glowing.

* On the go Tote along [H.sub.2]O Plus Oasis 24 Hydrating Booster ($28; h20plus.com), designed to increase the skin's ability to retain and absorb moisture. You can also boost the moisture quotient in your makeup regimen by switching to light, nourishing formulas like tinted moisturizers instead of heavy foundations. (Try Clinique City Block Sheer Shimmer Oil-Free Daily Face Protector SPF 15, $15.50; clinique.com.) Also opt for cream, rather than powder, makeup; it's more hydrating. We like Longcils Boncza Lumiere Touch 3 in 1 ($22; 800-753-2038), a creamy pencil that can be used on cheeks, lids and lips and blended with fingers or a brush.

* At the spa You'd be hard-pressed not to find a hydrating treatment at the Absolute Spa, located inside Vancouver International Airport at YVR Domestic Terminal. One pampering treatment we love: the E.T.A. Hydrating Express Facial ($60 for 45 minutes; absolutespa.com), which uses active ingredients like panthenol, chamomile and wheat bran to rehydrate skin.

Use makeup to wake up your eyes

"Red eyes triggered by dilated blood vessels, caused by dry air and lack of sleep, can add years to your face," Vadhera explains. To freshen up your eyes, steer clear of black liners and opt instead for navy ones, since blue makes the whites of your eyes look whiter. Then blend a creamy peach or white highlighting concealer beneath eyes to conceal dark circles and brighten the overall area. Lauren Hutton's Passport to Africa kit ($60; laurenhutton.com) has all the makeup you need for a trip, including sheer concealers, spot concealers, lip balm, eyebrow shadow, eyeliner and blush in easy-to-use colors that work on nearly everyone. Another must-have is NARS' The Multiple in the peachy shade Portofino ($35; sephora.com); it's a chubby tube of sheer cream-to-powder color that works to brighten cheeks and lips.

* On the go Don't leave home without La Prairie's Cellular Anti-Puff Eye Gel ($125; laprairie.com) with lemon balm, or Dr. Gendler's Skin Appointments Eye Assist with Matrixyl, an ingredient that helps promote production of the skin-firming tissues collagen and elastin while smoothing and de-puffing ($25; skinappointments.com).

* At the spa At the La Prairie Spa at the Ritz-Carlton New York, Central Park, the sleep-deprived can rejuvenate with Jet Lag Therapy ($265 for 90 minutes; 212-521-6135). It's designed to banish the effects of time-zone changes, dry airplane air and uncomfortable seats with aromatherapy massage, foot and hand reflexology and a de-stressing facial.

Adjust to time shifts

The key to feeling like yourself during long-distance travel is getting your body adjusted to a new time zone (changing your sleep schedule so that it works with your destination's time zone is the best way to do this), says Anna Doyle, director of Molton Brown Travel Spas located in the British Airways lounge (Pavilion T4 in London's Heathrow and Terminal 7 at New York's JFK airports). Citrus and grapeseed are naturally invigorating botanicals, so stock up on energizers like Miller Harris Tangerine Vert Eau de Parfum Spray ($98; 888-8BARNEYS) or Molton Brown Purifying Grapeseed Anti-Oxidant Dry Oil spray ($29; moltonbrown.com). Or try Bath & Body Works' Aromatherapy line ($5-$20; bathandbodyworks.com for store locations), which contains everything from massage oil to hair care in scents like Energize Orange Ginger and Relax Eucalyptus Spearmint.

* On the go To get some muchneeded z's when traveling by plane, skip the alcoholic beverages; they dehydrate you and prevent restful sleep. Also be sure to pack a soft eye mask (try one in a fashionable Puccilike print by Cris Notti, available for $20 on flight001.com), socks to keep feet warm, earplugs and smoothing lip balm to quench dehydrated lips. Comfort is key to being able to rest, Doyle says.

* At the spa For British Airways clients in business or first class, complimentary treatments at the Molton Brown Travel Spa make use of the oils ylang-ylang, Indian cardamom and French lavender, which, among other oils like eucalyptus and rose, have relaxing properties to promote sleep. Going coach? You can stock up on the company's retail Yuan Zhi set that includes bath and shower gel, body cream, Air of Sleep mist and a votive candle ($49; sephora.com).

Hydrate thirsty strands

"Hair is extremely susceptible to the stresses of flying," says Bonnie Baker, spa therapy manager at the Spa at Mandarin Oriental in Washington, D.C., which frequently caters to long-traveling hotel guests. If you travel a lot, you might notice more dry flyaway strands as well as more split ends.

* On the go Leave-in conditioners are must-haves for any traveler, as even those with oily hair can suffer from split ends. These conditioners add moisture to your hair and also protect it from environmental damage that could lead to additional moisture loss. Try Matrix Biolage Smoothing Shine Milk ($13; matrix.com for salon locations) with hydrating botanicals such as rice milk, bamboo milk and milk thistle, or KMS Daily Fixx ($5; kmshaircare.com for salon locations), which helps soften stressed hair and restore strength.

* At the spa The Indian Head and Scalp Massage at the Spa at Mandarin Oriental ($75 for 20 minutes; 202-787-6100) is centered around the application of E'SPA Pink Hair and Scalp Mud, which is massaged in to moisturize hair and scalp. The E'SPA pink mud ($60; 202-787-6100), also doubles as a rapid-results leave-in conditioner.

RELATED ARTICLE: TRAVEL NECESSITIES FOR $40 AND LESS

Skin-care expert Mona Sappenfield of the Mona Spa & Laser Center in Memphis, Tenn., Jackson, Miss., and Mattawan, Mich., never leaves home without her own emergency skin kit (in a Ziploc bag), which contains a gentle cleanser, eye gel and nourishing skin cream. Putting together your own kit is a must for any traveler, but if you're in the market for a ready-made one, these packed and ready-to-go bags house a lot in as little space as possible.

** L'Occitane Travel Kit ($25; www.loccitane.com) fits body lotion, milk shampoo, verbena shower cream, shea-butter hand cream, a tin of 100 percent pure shea butter and lavender-and-milk mini bar soaps all in a clear vinyl case with a canvas lining.

** Algotherm Unique Unidose ($15; algothermusa.com) is a supergentle eye makeup remover in 10 single-dose packages to make on-the-go clean-up simple; it soothes and cleanses with cornflower and seaweed.

** Naturopathica Home Spa Kit ($38; naturopathica.com) is packed with zesty lime shower gel, French Lavender Soothing Bath and Body Oil, Thai Herbal Body Lotion and Lemongrass & Ginger Bath and Body Oil.

** Sue Devitt Studio Holiday Palette in Nice ($32; 888-8BARNEYS) contains two silky eye shadows, two lip glosses--all in bronze and peach tones--and a lip brush for easy application.

** Bath by Bettijo Silky Shave Kit ($36; bathbybettijo.com) comes with a shaving oil and aftershave (both in a lemon-almond scent), along with a wood-handled razor and cleaning brush.