維他命C無論係淡斑、美白，抑或抗老化都可以做到顯著效果。
它可以幫助你的皮膚變得更光滑明亮、令你看起來更年輕。
維他命C護膚的好處:
(1) 防止黑色素合成 提亮肌膚
維他命C 精華液有助提亮膚色，改善肌膚暗沉，重煥自然亮澤的光彩。
(2) 促進膠原蛋白合成
維他命C 精華液有助促進皮膚製造膠原蛋白，令皮膚更緊緻、更飽滿。
(3) 減少紫外線的侵害
維生素 C 是一種有效的抗氧化劑，可以中和自由基，並有助減少皮膚因暴露於紫外線而造成的侵害。
(4) 淡化已形成的斑點（淡化黑色素）
維他命 C精華液中含有一種抑制皮膚產生黑色素的物質。使用維他命 C精華液可以幫助減淡皮膚的黑色素，如：雀斑、色斑等。
維他命C護膚使用方法:
想最大限度地抵禦紫外線傷害的話，建議早晚都使用含有維他命C的護膚保養品。
很多人會把含維他命C的保養品作為曬後修復的產品，放在夜間使用。但事實上，有數據顯示，早上出門前也使用含維他命C的保養品，抵禦紫外線傷害的效果會更好哦。
DIY 維他命C精華液製作:
矢車菊花水 20克
蘆薈膠 13克
維他命C 1-1.5克
甘油/ 天然保濕因子 1克
做法:
將以上份量原料混合即可使用，因蘆薈膠含有防腐成份，此成品製作好可不用額外添加抗菌, 建議2個月內用完。
維他命 C護膚的弱點:
維他命C精華容易令敏感肌產生刺激反應，有機會出現過敏情況，所以使用時可以先局部塗抹在臉上，一旦出現敏感情況要立即停用或尋求醫生幫助。
Vitamin C Skin Care: Benefits, How to Use, Weaknesses
Vitamin C can achieve significant results whether it is for lightening spots, whitening, or anti-aging. It can help your skin become smoother and brighter, making you look younger.
Vitamin C skin care benefits:
(1) Prevent melanin synthesis and brighten skin
Vitamin C serum helps brighten skin, improve dull skin, and restore natural radiance.
(2) Promote collagen synthesis
Vitamin C serum helps promote the production of collagen in the skin, making the skin firmer and plumper.
(3) Reduce ultraviolet damage
Vitamin C is a potent antioxidant that neutralizes free radicals and helps reduce skin damage caused by UV exposure.
(4) Lighten existing spots (lighten melanin)
Vitamin C serum contains a substance that inhibits the production of melanin in the skin. Using vitamin C essence can help reduce melanin in the skin, such as freckles, spots, etc.
How to use vitamin C skin care:
If you want to maximize your protection against UV damage, it is recommended to use skin care products containing vitamin C in the morning and evening.
Many people use skin care products containing vitamin C as an after-sun repair product at night. But in fact, some data show that if you also use skin care products containing vitamin C before going out in the morning, the effect of resisting ultraviolet damage will be better.
DIY Vitamin C Serum Making:
Cornflower flower water 20g
Aloe vera gel 13g
Vitamin C 1-1.5g
Glycerin/Sodium PCA 50% 1g
practice:
Mix the above ingredients and you can use it. Since aloe vera gel contains antiseptic ingredients, there is no need to add additional antibacterial agents to the finished product. It is recommended to use it within 2 months.
Weaknesses of Vitamin C Skin Care:
Vitamin C essence can easily cause irritation to sensitive skin and may lead to allergic reactions. Therefore, you can apply it topically on your face when using it. If any sensitivity occurs, stop using it immediately or seek medical help.