A醇的介紹
A醇(Retinol)是A酸(Retinoic acid)的前驅物，A醇是醇類，偏向中性，所以在使用上不會像果酸刺激皮膚，而且可以作用到真皮層。A醇一旦進入肌膚內，就會轉化為A酸，產生果酸的作用與功效，做完當下並不會有直接塗抹A酸可能產生的副作用，如：光過敏、皮膚乾燥、脫屑、泛紅、搔癢、灼熱感等，因此中敏感性肌膚也可以使用。
一般來說，煥膚療程頻率4～6週做一次治療即可，單次治療時間依照當下肌膚狀況、使用的產品不同，須做客製化調整。此外，煥膚療程常見的副作用有泛紅、脫皮、發炎，這是膚質更新時的正常現象，恢復期需要特別重視保濕與防曬。煥膚後的幾天內可能出現輕微紅腫、緊繃感，約2-3天後會出現可見的脫皮現象，持續大約2-4天。
A醇對皮膚的主要功用
1、抗痘
A醇具有緩解發炎的效果，而且能夠抑制毛囊皮膚腺的分泌、促使細胞生長正常化，改善毛孔內外角質堆積、堵塞狀況。
2縮小毛孔
A醇可以促進角質細胞正常分化，讓角質細胞變得更緊實，促進細胞間質的生成，使皮膚緊致平滑，讓毛孔更顯得不那麼明顯。
3、抗老、抗皺紋
A醇可以防真皮層膠原蛋白的分解，改善皮膚皺褶。這就是為什麼A醇可以改善光老化的原因，而且A醇對於減少細紋和皺紋，皮膚粗糙，改善皮膚紋理已被證明是很有效的。
4、美白
A醇能夠加速角質細胞代謝，抑制黑素細胞的生成（改善色素沉澱），無論什麼美白產品，搭配上A醇，效果都會加倍，而且能同時讓皮膚飽滿、有光澤。
來源:
A comparative study of the effects of retinol and retinoic acid on histological, molecular, and clinical properties of human skin. Rong Kong, et al. J Cosmet Dermatol. 2016 Mar;15(1):49-57.
Retinoids suppress cysteine-rich protein 61 (CCN1), a negative regulator of collagen homeostasis, in skin equivalent cultures and aged human skin in vivo. Quan T, et, al. Exp Dermatol. 2011 Jul;20(7):572-6.
A醇煥膚適合的問題肌膚
．肝斑、雀斑、曬斑、老人斑
．皮膚發炎後的色素沉澱
．青春痘、粉刺、發炎性膿皰、丘疹、痘疤
．臉部細紋
．粗糙暗沉
．毛孔粗大
A醇煥膚療程前
• 煥膚前應停止以下行為：使用A酸產品、去角質或使用磨砂膏、臉部除毛、臉部曬傷
• 請告知您是否有下列狀況：免疫性或過敏性皮膚疾病、臉部受傷、臉部皮膚病，如濕疹、異位性皮膚炎、病毒感染，如皰疹等、對日光過度敏感、對酒精過敏、易致疤痕體質，如蟹足腫、肥厚性疤痕等、是否正在服用口服維生素A酸藥物、是否曾做過雷射治療，放射線治療或拉皮手術、是否懷孕或哺乳。
• 孕婦及哺乳中請勿使用A醇煥膚。
• 接受治療前一週，請勿刮鬍子或挽臉。
•接受治療當天,請先將臉部洗乾淨，勿化妝。
•如有疑問,請與醫師或診所人員討論。
A醇治療後
•煥膚後當下並不會馬上出現脫皮反應。
•煥膚後臉部如有輕微刺激、紅腫、搔癢、脫皮、灼熱感及臉部緊繃感，皆為煥膚調理後皮膚呈現的正常反應，請塗抹藥膏勿搔抓皮膚，以上症狀將在數天内自動消失。
•煥膚後2至3天，皮膚會開始出現明顯的脫皮現象，此現象會在一個禮拜内慢慢消失，請勿抓、撕，讓臉上脫皮自然脫落並加強保濕。
•開始脫皮的三天内，皮膚較為敏感，脫皮期間使用保養品可能會有輕微刺痛感，皮膚會有乾燥緊繃的感覺，請加強保濕並勿上妝。
•較嚴重的脫皮或是脫皮期間皮膚較為疼痛，可使用凡士林等油狀產品保護皮膚，幫助修復。
•請使用溫水及溫合的中性洗臉用品清潔臉，勿使用顆粒或磨砂產品，洗後輕輕壓乾，勿用力擦拭。
•平時使用之保養品、化妝品，請於皮膚恢復正常後再開始使用。
•煥膚後一週，請停止使用磨砂膏或其他去角質產品，並停止使用任何酸類之保養品(除玻尿酸外)。
•煥膚後避免曝曬在陽光下，出門前防曬產品，暫停戶外活動，避免過度刺激皮膚。
•煥膚完間隔4至6週可再進行一次煥膚，或是等到肌膚完全修復，若肌膚敏感，可間隔8至10週或更長再做下一次煥膚。
•煥膚後，將A醇停留在臉上6-8小時後再沖洗乾淨，不需中和，若有紅腫等不適，或是任何疑慮，可立即洗淨。
•輕度煥膚或敏感性肌膚，可在煥膚後3小時洗掉臉上殘留的A醇，若有紅腫等不適，請盡速洗淨。
•若有其他不正常狀況或其他問題，請與服務人員聯絡。
Introduction to Retinol:
Retinol is a precursor of retinoic acid. Retinol is a type of alcohol that is more neutral, so it does not irritate the skin like fruit acids. It can penetrate the dermis layer of the skin. Once retinol enters the skin, it is converted to retinoic acid, producing the effects and benefits of fruit acids. Unlike directly applying retinoic acid, there are no immediate side effects such as photosensitivity, dryness, peeling, redness, itching, or burning sensation. Therefore, even people with sensitive skin can use it.
Generally, a treatment can be done every 4 to 6 weeks. The duration of a single treatment depends on the current condition of the skin and the products used and requires customized adjustment. In addition, common side effects of rejuvenation treatments include redness, peeling, and inflammation, which are normal phenomena during skin renewal. During the recovery period, it is important to pay special attention to moisturizing and sun protection. Mild redness and tightness may occur in the few days following the treatment, and visible peeling may occur around 2 to 3 days later, lasting for about 2 to 4 days.
The main functions of Retinol on Skin:
1. Anti-acne: Retinol has anti-inflammatory effects and can inhibit the secretion of sebaceous glands in hair follicles, promote normal cell growth, improve the accumulation and blockage of keratin inside and outside pores.
2. Minimizing pores: Retinol can promote the normal differentiation of keratinocytes, making them tighter and promoting the generation of intercellular substances, making the skin tight and smooth, and making the pores appear less noticeable.
3. Anti-aging and anti-wrinkle: Retinol can prevent the breakdown of collagen in the dermis and improve skin wrinkles. This is why Retinol can improve photoaging, reduce fine lines and wrinkles, rough skin, and improve skin texture.
4. Whitening: Retinol can accelerate the metabolism of keratinocytes, inhibit the generation of melanocytes (improving pigment deposition). When combined with any whitening product, the effect will be doubled, and it can also make the skin plump and shiny at the same time.
A comparative study of the effects of retinol and retinoic acid on histological, molecular, and clinical properties of human skin. Rong Kong, et al. J Cosmet Dermatol. 2016 Mar;15(1):49-57.
Retinoids suppress cysteine-rich protein 61 (CCN1), a negative regulator of collagen homeostasis, in skin equivalent cultures and aged human skin in vivo. Quan T, et, al. Exp Dermatol. 2011 Jul;20(7):572-6.
Skin problems suitable for Retinol peeling treatment:
• Chloasma (liver spots)
• Freckles
• Solar lentigo (sunspots)
• Seborrheic keratosis (age spots)
• Post-inflammatory hyperpigmentation (pigmentation after skin inflammation)
• Acne, pimples, inflammatory pustules, papules
• Acne scars
• Fine wrinkles on the face
• Roughness and dullness
• Enlarged pores
Before the Retinol peeling treatment, the following actions should be avoided:
•Using retinoid acid products, exfoliating or using scrubs, facial hair removal, and facial sunburn.
• Please inform if you have the following conditions: immune or allergic skin diseases, facial injuries, facial skin diseases such as eczema, atopic dermatitis, viral infections such as herpes, excessive sensitivity to sunlight, alcohol allergies, tendency to scar, such as keloids, hypertrophic scars, etc., whether you are taking oral vitamin A acid medication, have undergone laser treatment, radiation therapy or facelift surgery, or if you are pregnant or breastfeeding.
• Pregnant and breastfeeding women should not use retinol peel.
• One week before the treatment, please do not shave or wax your face.
• On the day of the treatment, please clean your face and do not wear makeup.
• If you have any questions, please discuss with the doctor or clinic staff.
After treatment with Retinol Peeling:
• Immediate peeling reactions may not appear after treatment.
• If there is mild irritation, redness, itching, peeling, burning sensation, and tightness on the face after treatment, these are normal skin reactions after retinol peeling treatment. Please apply ointment and do not scratch the skin. These symptoms will automatically disappear within a few days.
• 2-3 days after treatment, the skin will begin to show significant peeling, which will slowly disappear within a week. Please do not scratch or tear the peeling skin, and enhance moisturization.
• During the first three days of peeling, the skin may be more sensitive, and the use of skincare products may cause mild tingling sensation. The skin may feel dry and tight during the peeling period. Please enhance moisturization and do not apply makeup.
• In the case of more severe peeling or pain during the peeling period, you can use oil-based products such as Vaseline to protect the skin and help repair it.
• Please use warm water and neutral facial cleansing products to clean your face, and do not use granular or scrubbing products. After washing, gently pat dry and do not wipe hard.
• Please start using the usual skincare and makeup products after the skin has returned to normal.
• One week after treatment, please stop using scrubbing products or other exfoliating products, and stop using any acid-based skincare products (except hyaluronic acid).
• Avoid exposure to sunlight after treatment, apply sunscreen before going out, suspend outdoor activities, and avoid excessive skin stimulation.
• Treatment can be performed again 4-6 weeks after the last treatment, or wait until the skin is completely repaired. If the skin is sensitive, it can be done again after 8-10 weeks or longer.
• After treatment, leave Retinol on the face for 6-8 hours before rinsing off, no need to neutralize. If there is discomfort such as redness or swelling, or any concerns, please wash it off immediately.
• For mild treatment or sensitive skin, residual Retinol on the face can be washed off after 3 hours. If there is discomfort such as redness or swelling, please wash it off as soon as possible.
• If there are any other abnormal conditions or problems, please contact the clinic staff.
