Obagi Professional-C Serum 10% 30ml

Obagi Professional-C Serum 10% 維他命 C 抗氧化精華（30ml）是一款適合乾性或敏感肌膚的抗氧化精華，以 10% 左旋維他命 C（L-Ascorbic Acid）為核心，有助中和自由基、提亮暗啞膚色及改善膚色不均，同時淡化細紋及皺紋的外觀，令肌膚更顯明亮細緻。10% 是 Professional-C 精華系列中較低的維他命 C 濃度，可供初次使用純維他命 C 或偏好較低濃度配方的人士考慮，但實際耐受程度仍因人而異。每天早上潔面及爽膚後、面霜前，取 5 至 7 滴以指尖塗於面部、頸部及胸前，避開眼周，再接續保濕產品及防曬，最後按需要上妝。配方含香料，容易敏感或對香料敏感者，應先確認成分是否適合自己，並於初次使用前作局部測試。

常見問題

Q：應該在早上還是晚上使用？
A：按照品牌目前的使用指示，建議每天早上潔面及爽膚後、面霜前使用 5 至 7 滴，再接續保濕產品及防曬，最後按需要上妝。維他命 C 精華提供抗氧化護理，但不能取代防曬產品；日間仍須使用合適的廣譜防曬，並按需要補塗。

Q：使用多久才會見到亮膚效果？
A：亮膚、膚色均勻度及細紋外觀的改善需要持續使用，實際效果及所需時間會因個人膚況、使用習慣及日常防曬而異，不宜保證在指定日數內見效。請按指示使用，不要為加快效果而自行增加用量或改用更高濃度。

Q：敏感肌一定適合嗎？使用時有輕微刺痛正常嗎？
A：品牌將 10% 配方定位為適合乾性或敏感肌，但不代表所有敏感肌都不會出現反應。使用時可能出現輕微短暫刺感，但不應將持續或明顯刺痛視為必須忍受的正常反應。初次使用建議先作局部測試；如出現持續刺痛、明顯泛紅、痕癢或其他不適，應停止使用，必要時諮詢醫生。

Q：開封後應怎樣保存？新舊包裝有分別嗎？
A：品牌建議於首次開封後 3 至 6 個月內用完，並存放於陰涼、避光及溫濕度穩定的位置，溫度不應高於 25°C，避免陽光直射，每次用後緊閉瓶蓋。如實際包裝標示的有效期或開封後使用期限更早，應以較早者為準。Obagi 曾更新包裝設計，品牌表示該次包裝更新保留原有配方及容量；但不能單憑新舊外觀判斷產品真偽或批次狀態，收到貨品後仍應核對名稱、10% 濃度、容量及批次資料。

Obagi Professional-C Serum 10% (30ml) is an antioxidant serum formulated for dry or sensitive skin. Its 10% L-ascorbic acid formula helps neutralise free radicals, brighten a dull complexion and promote a more even-looking skin tone, while reducing the appearance of fine lines and wrinkles. As a lower-strength option within the Professional-C serum range, it may be considered by those new to pure vitamin C or those who prefer a lower concentration, although individual tolerance still varies. Each morning after cleansing and toning, apply 5–7 drops with your fingertips to the face, neck and chest, avoiding the eye area. Follow with moisturiser and sunscreen, then makeup if desired. The formula contains fragrance; those with reactive or fragrance-sensitive skin should check the ingredients for suitability and patch test before first use.

Frequently Asked Questions

Q: Should I use this serum in the morning or at night?
A: The brand’s current directions recommend applying 5–7 drops each morning after cleansing and toning, before moisturiser. Follow with sunscreen and then makeup if desired. Vitamin C provides antioxidant support but does not replace sunscreen. Use suitable broad-spectrum sun protection during the day and reapply as needed.

Q: How long will it take to see brighter skin?
A: Improvements in radiance, uneven tone and the appearance of fine lines require consistent use. Results and the time needed vary with your skin’s condition, routine and daily sun protection, so a specific result within a set number of days should not be guaranteed. Follow the directions rather than increasing the amount or moving to a stronger concentration simply to speed up results.

Q: Is it suitable for every sensitive skin type, and is tingling normal?
A: The brand positions the 10% formula for dry or sensitive skin, but this does not guarantee that everyone will tolerate it. A mild, brief tingling sensation may occur, but persistent or significant stinging should not be treated as something you need to endure. Patch test before first use. Discontinue use if persistent stinging, significant redness, itching or other irritation develops, and seek medical advice if needed.

Q: How should I store it, and why does the packaging sometimes look different?
A: The brand recommends using the serum within 3–6 months of first opening. Store it in a cool, dark place with stable temperature and humidity, at a temperature not exceeding 25°C. Keep it away from direct sunlight and close the cap tightly after use. If the expiry date or period-after-opening instructions on your packaging require earlier disposal, follow the earlier limit. Obagi has introduced updated packaging and states that the corresponding packaging refresh retains the existing formulas and fill quantities. However, packaging appearance alone cannot confirm authenticity or batch condition; check the product name, 10% strength, size and batch details on the item received.