氢醌脱色霜

什么是氢醌?

氢醌(hi-dro-kwi-non)是一种皮肤美白剂,也存在于植物和动物体内。它可用于局部涂抹,以淡化色素沉着或皮肤变黑的部位。

氢醌(浓度最高可达 4%)只能由持牌医生开具处方,以乳膏、乳液、凝胶或溶液的形式使用。它可以作为单一的外用产品,也可以作为其他处方药物中的成分。

如需了解氢醌是否适合您,请预约咨询。

氢醌的作用机制

氢醌通过抑制皮肤中的黑色素细胞(melanocytes)来发挥作用。黑色素细胞是产生黑色素(melanin)的细胞,而黑色素决定了皮肤的颜色。

当皮肤出现色素沉着或变黑(如黄褐斑、老年斑/日晒斑、雀斑、咖啡斑)时,这些区域的黑色素含量较高,是由于黑色素细胞的活跃度增加所致。

因此,通过减少治疗部位的黑色素细胞活性,氢醌可以逐渐均匀肤色。

使用氢醌多久可以见效?

通常,皮肤美白效果在 约 4 周后 开始显现。

具体见效时间取决于色素沉着的类型和严重程度、患者的肤色以及治疗后是否做好防晒措施。对于某些人来说,可能需要数月的持续使用才能达到最佳效果。

部分患者可能更倾向于选择其他治疗方案,例如抗色素沉着激光、Ethosome Gold PTT 以及射频黄金微针(Sylfirm X、Morpheus 8、Secret RF)。

氢醌可以治疗哪些皮肤问题?

氢醌可用于治疗多种与色素沉着相关的皮肤问题,包括但不限于:

  • 黄褐斑(Melasma):一种常见的皮肤问题,表现为面部褐色斑块,通常出现在双颊、额头、下巴和上唇部位。
  • 日晒斑/老年斑(Solar Lentigines / Sun Spots / Age Spots):由于长期日晒而在皮肤上形成的色斑,除了脸部,这些斑点还可能出现在手部、手臂和肩膀等经常暴露在阳光下的区域。
  • 雀斑(Freckles):小而扁平、呈红色至棕色的斑点,通常出现在暴露于阳光的皮肤区域。这些斑点通常是由于黑色素过度生成所导致,可能与紫外线(UV)照射或遗传因素相关。
  • 炎症后色素沉着(Post-Inflammatory Hyperpigmentation, PIH):指皮肤在受到损伤或炎症(如痤疮、湿疹或皮肤擦伤)后留下的深色斑块。虽然任何人都可能受到影响,但肤色较深的人更容易出现这种情况。
  • 贝克痣(Becker’s Nevus):一种常见于男性的大型良性色素性胎记。

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FAQ

Yes, when prescribed by a licensed doctor. Historically, there have been a number of safety concerns about hydroquinone. But the U.S. Food and Drug Administration confirmed that hydroquinone only be prescribed by a doctor at a maximum of 4 percent concentration.

Some side effects such as dryness and irritation are not unusual, especially if you have dry or sensitive skin. We recommend applying a moisturiser after. These side effects may also taper off as your skin adjusts to the ingredient.

If any of the following effects persist or become severe, consult your doctor:

  • Itching
  • Dryness
  • Mild burning sensation
  • Redness
  • Stinging sensation

Stop using hydroquinone and consult your doctor if the following occurs:

  • Acne breakouts
  • Blistering
  • Crusting
  • Ochronosis (unusual blue-black or grey-blue skin discolourations)
  • Oozing of pus
  • Scaling and peeling
  • Severe burning
  • Severe dryness
  • Severe irritation or itching
  • Stretch marks form
  • Swelling
  • Telangiectasia (red lines/blood vessels showing through skin)

A very serious allergic reaction to hydroquinone is rare. However, seek immediate medical attention if you exhibit symptoms of a serious allergic reaction such as hives, difficulty breathing, swelling of face, lips, tongue, or throat.

Generally, we recommend applying hydroquinone to the affected area 1 to 2 times a day for 3 to 6 months. If improvements are not seen after 2 to 3 months of consistent use, discontinue use.

At SL Aesthetic Clinic, we prefer using hydroquinone as a concentrated treatment to address an immediate hyperpigmentation concern. We do not offer it as a means to maintain results for the long term.

Hydroquinone is a viable treatment of choice for those suffering from pigmentary problems such as melasma, sun spots, age spots, post-inflammatory hyperpigmentation and more.

  • Patients with unrealistic expectations, such as those who seek complete eradication of unwanted pigmentation
  • Prior ionising radiation to the area to be treated
  • Recent deep chemical peels or dermabrasion
  • Dark complexions
  • Allergy or hypersensitivity to hydroquinone
  • Pregnant women, those planning for pregnancy or are breastfeeding
  • Patients whose daily activities involve prolonged sun exposure
  • When taken with other medications that cause photosensitivity

Pre-treatment instructions: ensure that you’re in a good state of health. Always disclose your full medical history during consultation (e.g., asthma).

Women should also tell your doctor if you are pregnant, planning for pregnancy, or are breast-feeding.

Inform your doctor if you have other skin conditions (e.g., eczema, psoriasis) or have any unusual or allergic reactions to any ingredients or topicals.

Post-treatment instructions: apply a moisturiser after treatment. Avoid prolonged sun exposure, tanning booths, and sunlamps. Always use sunscreen. And wear protective clothing over treated areas, if possible.

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