皮膚科張宜菁醫師|前哈佛大學研究員/北醫美容中心主任 Dr. I-JING CHANG DERMATOLOGIST TAIPEI COSMETIC CLINIC
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12/7/2019 0 評論

全方位防曬-陽光不咬人 (本文已刊登於聯合新聞網)

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聯合新聞網本文連結:health.udn.com/health/story/6045/343151  

【聯合報/張宜菁/臺北醫學大學附設醫院皮膚科醫師】

防曬,對皮膚癌症、老化、黑斑、曬傷的預防,非常重要。面對琳琅滿目的產品,你怎樣選擇?

陽光中傷害皮膚的紫外線,依波長分成UVA(320~400奈米)與UVB (290~320奈米)兩種。UVA對皮膚的傷害不易察覺,卻可以導致皮膚老化與皮膚癌。因此,兼顧UVA與UVB的配方,已成為新時代防曬品的必備條件。

為提供正確訊息,最近美國FDA要求市面上防曬品標示,須符合三大規定︰(一)不准標示大於50以上的SPF數值,(二)標明紫外線UVA的防護力,(三)禁止包括「阻絕陽光」(Sunblock)、「防水」(Waterproof)、「防出汗」(Sweatproof),與「全日長效防護」(All-day-protection)等會誤導消費者的標示。


SPF係數越高越有效嗎?

防曬品包裝上的「SPF係數」,主要是對紫外線中「UVB」的保護力。UVB對肌膚的危害,最明顯的是曬傷,也可能致皮膚癌。SPF 30的防曬品過濾UVB的效果已經不錯,可濾掉日光裡97%的UVB;SPF 50則可濾掉98%的UVB。比SPF 50數值更高的防曬乳,效果增加有限,反而增加油膩感。競爭激烈的市場上,SPF數字年年攀高,曾有廠商甚至想推出三位數以上SPF的產品。為了導正觀念,FDA將禁止標示SPF 50以上的數值。

怎麼判斷防曬乳的UVA防護力? 

英、澳、日、美等國家,各有一套標準。經過漫長研究,美國FDA將採用四星級的標示。原則上,三顆星與四顆星的,保護力較足夠。台灣大多沿用日本的「PA值」標示。相較於FDA,「PA值」是直接在人體皮膚上測試所得,也值得參考。

哪些防曬成分能過濾掉UVA?目前已研發的,有氧化鋅、二氧化鈦,Avobenzone, Oxybenzone, Mexoryl, Helioplex等。


標示「阻絕陽光、防水、長效」的比較好嗎?

針對喜愛戶外運動的族群,許多產品標榜「防水」、「防出汗」,有些更強調可完全阻絕陽光(Sunblock)。部分消費者以為塗了這些強效防曬乳後,連續曬好幾個小時也安全無虞。

其實,防曬品很難完全防水、或是在皮膚上長時間不耗損、變質。若沒有定時補充防曬劑,等於容許紫外線直接傷害肌膚,相當危險。

有鑑於此,FDA才會禁止這些標示。出汗的季節,防曬乳容易脫落。進行水上活動時,陽光經由水的反射,能量會放大。在這些時刻,得更勤於補塗防曬乳。


全方位的防曬策略

依據美國皮膚科醫學會的指導方針,出門前半小時就要塗好防曬乳,每兩小時補塗一次。以台灣的日照量,我們需要SPF 30以上的防曬乳。若擔心擦防曬乳會長痘痘、困擾你上妝,可挑選標示不導致粉刺(Non-Comedogenic)、清爽型的配方。UVA能穿透玻璃,坐在窗邊或開車時,記得防曬。

防曬乳再好,都只能降低紫外線進去皮膚的量。想真正做好防曬,還是要減少肌膚暴露在陽光下的機會。比較實際的作法是,縮短上午10點到下午4點間的外出時間、走騎樓或樹蔭。撐洋傘、戴帽子,或運用專業的防曬衣物。
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預約張宜菁醫師美容醫學門診:(02) 6636-7135
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    醫美如何美感自然又安全,皮膚問題怎麼照顧,讓留學美國哈佛皮膚科的張宜菁醫師,提供您正確的醫療新知。
    預約美容醫學門診諮詢,請來電北醫美容醫學中心: (02)6636-7135, (02)27372181轉8215

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美容醫學療程效果因人而異,術後可能有風險與副作用。術前請諮詢專業醫師,並注重術後照護。

雷射等美容醫學光電治療後可能有皮膚紅腫、黑色素沉澱、單純皰疹復發、灼傷等副作用

電波或音波治療後可能有泛紅、水腫、緊繃感。少數情況有水泡、燙傷、疤痕、
神經麻痺、單純泡疹復發等副作用。

玻尿酸填充劑注射後可能有瘀青、紅腫、腫塊、單純泡疹復發、皮膚壞死、感染等副作用。

肉毒桿菌素注射術後可能有表情不自然、頭痛、眉形改變、眼皮下垂等副作用


倍克脂注射術後可能有瘀青、腫脹、疼痛、毛髮脫落、吞嚥困難、皮膚局部壞死、感染、神經受傷等副作用。

網站目錄 (點選進入各主題) 

雷射光療  鳳凰電波  痘痘痘疤  美白抗老 

微整理念  肉毒除皺  微整案例  下巴消脂  

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book an appointment: CHANGSKINLASER@GMAIL.COM

張醫師美容門診位在台北市中心2個分點 :

1. 綺顏診所 Face Clinic

週三下午微整形拉提門診/ Wedsday afternoon Clinic

預約此門診請來信或傳訊息至張醫師FB:www.Facebook.com/Drchangskinlaser
changskinlaser@gmail.com

Booking by EMAIL: changskinlaser@gmail.com
台北市大安區仁愛路四段109號2樓
2F, No 109, Sec 4, RenAi Road, Da-an District, Taipei

捷運 MRT:
​
​忠孝敦化站6號出口步行2分鐘

(Blue line to Zhongxiao Dunhua Station Exit No.6 and walk for 2 minutes)

2. 北醫美容醫學中心  TMUH Aesthetic Medical Center

週一/ 週五下午、週二/ 週六上午美容醫學門診
Mon/ Fri afternoon,Tue/ Sat morning Cosmetic Clinic  

預約此門診請來電或傳訊息至張醫師FB:
www.facebook.com/Drchangskinlaser

 (02)66367135
​ 

Booking by EMAIL: changskinlaser@gmail.com
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台北市信義區吳興街252號北醫附設醫院第3醫療大樓2樓皮膚科門診區
No 252 Wuxing Street Sinyi District Taipei


捷運 MRT :

淡水信義線-世貿101站 
步行10分鐘達本院 
(桃園中正機場捷運可於北門站轉捷運淡水信義線)
(Red Line to Taipei 101, and walk for 10 minutes)

板南線-市政府站
搭北醫附設醫院接駁車到本院
 (Blue Line to Taipei City Hall Station Exit No 2, and take TMU shuttle bus)

公車 BUS :
​
台北醫學大學站 (Taipei Medical University)
1, 22, 33, 37, 226, 266,288, 承德幹線, 藍5 

What Our Patients Are Saying
心得分享

在醫師的指導之下,可以得到最適合自己臉上泛紅跟黑斑的治療方式,亦精確了解後續雷射療程,如何作用在自己身上,過程具專業解說,後續且伴隨有效率的追蹤,讓我感覺很安心。感謝醫生及團隊。

佳莉


在醫師的巧手下,我發現微整形居然讓我找回了手機舊照片中年輕時的自己。因為是自己的樣子、不用成為別的樣子,所以現在每天照鏡子時,充滿了幸福感呢^^~

S. F.

Dr. Chang is precise and punctual. It's easy to see that her knowledge and experience is outstanding. I couldn't be in better hands. Thank you!

K. Kuo

 
"Dr. Chang is amazing at her work and was very attentive to my needs. I am from the United States, North Carolina, and I came to Taipei on a
business trip with my husband. Dr. Chang was very informative and knowledgeable and explained everything to me in terms that I could understand. I met with Dr. Chang because of issues with fine lines and wrinkles, sun damage and an uneven skin tone. I received Fraxel Laser to my face and also Restylane injections to my chin, lips and under my eyes. I am extremely pleased with my results because they look very natural!! I would highly recommend Dr. Chang."


Theresa K.

I came across Dr I-Jing Chang's page on the Taiwan Medical University website by happy coincidence! I was looking for a good Taipei dermatology service that specialized in lip fillers, as that part of my face has lost volume as I have aged. I had a bad experience with lip filler some years ago in Taiwan at another clinic, and had since heard from other dermatologists here that fillers, especially for the lip, are not as common a procedure in TW as in the West. I had almost run out of hope that I could get a good treatment until I met Dr Chang.

From the first moment I met her, I had great confidence in her expert knowledge, her evaluation of my aesthetic needs and her true concern for patients. Now after having several treatments, including lip filler and Botox, my great first impression of Dr Chang has been more than confirmed. She is deeply knowledgeable about skin and aesthetic issues, and well trained in the US and in Taiwan. She is deeply empathetic, she is encouraging, she knows exactly what pain you might feel (and takes steps to minimize it), and she is an artist. She knows so much about what she is doing, and she truly cares about her patients.  The same goes for all her staff. The experience has been very positive, and I recommend her clinic very highly!
​
Mary G.

Hello, I am a patient who is from California in the US. I have travelled to Taiwan for this particular skin treatment (fraxal) because the doctor is so amazing. In the past, I have tried so many luxury skincare lines, acid peels, microdermabrasion, and other such treatments for my acne and acne scarring. However, NONE of them can even compare to the wonderful effectiveness of this doctor. She has helped me so very much and I am extremely grateful. I cannot recommend her enough. She is the best and will give you the skin results you have always wanted. Definitely worth travelling around the world for! Book an appointment NOW!

Henry Hsu
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