{"content_id":"1867731","content_type":"product"}
Xếp hạng
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Cá nhân hóa làn da tôiCá nhân hóa
làn da tôi
Vui lòng thiết lập loại da và vấn đề da của bạn trong mục MY.
Đánh giá
(7)- 99*****Da hỗn hợpDa nhạy cảmLàm sáng da / Đốm thâmBã nhờn / Mụn đầu đenNếp nhăn / Độ đàn hồiLỗ chân lông toĐược đề xuất20/11/2025 (UTC+0)
Tôi mua thêm để so sánh, và khi đem ra so với một sản phẩm tốt hơn, thì sản phẩm này có phần gây kích ứng. Lý do là da tôi hiện đang ở trạng thái nhạy cảm. Những chuyến công tác thường xuyên, làm việc muộn, lượng nước uống chưa đến 1000ml một ngày - những điều như vậy khiến da tôi trở nên nhạy cảm hơn. Đặc biệt là khi da yếu, tôi có những vùng da dễ nổi mẩn giống như da mao mạch, và mỗi lần thoa sản phẩm này lên thì những vùng đó lại đỏ lên. Vì vậy, theo đánh giá của tôi, sản phẩm này có mức độ kích ứng khá cao để sử dụng hàng ngày. Về hiệu quả làm sáng da, nó ngang bằng với ceq. Vì ceq không gây kích ứng khi làm sáng da và còn cải thiện tình trạng khô nên nếu giá cả tương đương, tôi sẽ chọn ceq. Tôi nhận ra rằng da của tôi không bao giờ ở cùng một trạng thái. Timeless dường như sẽ trở thành một phần trong quá khứ của lịch sử làm đẹp của tôi. Dù sao thì sản phẩm này cũng tốt thôi. Nhược điểm: Timeless, bạn cũng tốt, nhưng có quá nhiều sản phẩm khác tốt hơn. Xin lỗi bạn. Đội ngũ thử nghiệm Hwahae đánh giá: Cảm ơn bạn đã chia sẻ trải nghiệm chi tiết về sản phẩm này. Nhận xét của bạn rất hữu ích cho những người có da nhạy cảm. - kg****Da dầuĐược đề xuất17/09/2025 (UTC+0)
I've been using this consistently for about a month now. When you think of pure vitamin C products, you'd expect them to feel sticky or have a strong scent, but this one doesn't have much stickiness at all and the fragrance is really subtle. I'm starting to notice the effects gradually. I've tried several products with brightening ingredients, but honestly, none of them delivered real results. However, with this pure vitamin C serum, I can see that my acne scars and dark spots are noticeably fading, and my skin tone is becoming more even. Now I understand why everyone recommends pure vitamin C! The texture flows like water and spreads beautifully on the skin. Pure vitamin C can be irritating, and I do feel a slight tingling sensation occasionally, but it's really mild and happens so rarely that I'd say the irritation is almost nonexistent. The container is completely opaque from the outside, which should help slow down product oxidation. I'm also storing it in the fridge to keep it fresh. I think I've finally found a product I'll use forever. Since you can't see inside the container at all, it's impossible to check how much product is left. You have to open the lid and look from the top to see what's inside. Let the product absorb fully for at least 5 minutes after applying it to your skin. You can check how much product remains by shining your phone's flashlight close to the container. - 99*****Da hỗn hợpDa nhạy cảmLàm sáng da / Đốm thâmBã nhờn / Mụn đầu đenNếp nhăn / Độ đàn hồiLỗ chân lông toĐược đề xuất31/05/2025 (UTC+0)
This brightening product is absolutely amazing. My complexion looks so much clearer and more radiant. I have warm undertones, and I was really pleased to see that my uneven skin tone finally looks balanced and uniform. It's been wonderful for texture refinement, and I haven't experienced any irritation at all. I've also noticed that my skin feels smoother as the flakiness has improved. There's something so reassuring about using this product—it feels like a real investment in my skin's health. I chose this because it's a more affordable alternative to Skinceuticals' C E Ferulic combination, which I've tried before. There's another similar option on iHerb that comes in a huge size, and honestly, this one performs even better. I'm curious why that is, since the ingredients seem pretty comparable. The only downside is that you can't see the product inside the bottle. It comes in an opaque yellow plastic container, which is a bit disappointing. That said, I do understand why they designed it this way—the formula needs protection from light exposure, so I can't really complain. When I use this followed by a collagen mask, my skin looks absolutely flawless and glowing the next morning. - hi********Da dầuDa nhạy cảmDa mụnĐược đề xuất04/03/2024 (UTC+0)
I chose this product because it contains vitamins C and E while still being affordable. It doesn't deliver dramatic visible results, but I feel anxious without using it, so it's become part of my routine. My skin is sensitive, but it doesn't cause any stinging or irritation. Since it's an international product, shipping can be inconvenient. That's really the only drawback I've experienced. For best results, make sure to let it absorb fully into your skin before applying the next step in your routine. 
3d******Da dầuBã nhờn / Mụn đầu đenLỗ chân lông toĐược đề xuất07/04/2023 (UTC+0)Skip ampoules that don't deliver results and unnecessary gimmicky formulations. Instead, go straight for vitamin C, B, and A serums. (Vitamin C concentrations above 15-20 percent are unnecessary.) These are powerful antioxidants that protect your skin from environmental damage. There's a reason dermatologists keep talking about vitamins. My basic routine is simple: vitamin C and A ampoule, followed by a hydrating product (I use an emulsion instead of a heavy cream since my skin is oily). That's it. Do a skincare diet. I love this product because its ingredient list is beautifully simple, making it my go-to vitamin C serum. Since someone already explained the vitamin formulation brilliantly in the reviews, I'll keep it brief. This product mimics Skinceuticals' patented vitamin combination (pure vitamin C plus E plus ferulic acid) but falls just short of their formula. A popular skincare blogger discovered it on Reddit and recommended it, which is how it gained attention. There's a more affordable alternative called Purador that includes retinol (vitamin A), which some say works even better. I chose this one because I want to use the gentler retinal in the future. Skinceuticals' patent expires in just a few years, so we'll probably see more affordable vitamin C, E, and ferulic acid options hit the market then. The problem is finding a trustworthy seller for international purchases. Oxidation control is crucial, and there are so many counterfeit products out there that I'm seriously considering switching to Korean brands instead. (Fair warning: it will feel slightly stingy, but that's actually normal. Vitamin C works best at an acidic pH, and pH 3 is considered ideal.) Among Korean brands, Innisfree and Dr. G have decent options (though their pH is around 5). There are also innovative concepts similar to Skinceuticals that offer better value for money. Apply one pump to your forehead, one to your chin, two to your left cheek, and two to your right cheek. Wait about one minute, then follow with an emulsion or cream moisturizer. This matters because if your hydrating product changes the pH level, the vitamin C's effectiveness drops. If you notice significant browning or oxidation, stop using it immediately. Refrigeration is recommended, but avoid sudden temperature changes since they're not good for skincare products. Once you start refrigerating it, keep it refrigerated consistently. I've added Dr. Different 0.1 percent retinal (next-generation retinol developed using liposomal technology by Kolmar) to this product. Vitamin C and retinal work beautifully together with great synergy. At night, I use vitamin C plus retinal ampoule, and in the morning, I use niacinamide ampoule. However, using pure vitamin C at a low pH alongside high-concentration niacinamide can cause blood vessel dilation and irritation. I experienced facial redness even with a toner containing less than 5 percent niacinamide, so I stopped using that toner entirely. (I've noticed some people on YouTube following a vitamin C, B, and A routine based on a dermatologist's recommendation, but the vitamin C they're using is just vitamin-enriched rather than pure vitamin C, which is why high-concentration niacinamide doesn't irritate their skin. That dermatologist also mentioned not using pure vitamin C together with niacinamide.) - fr*****Da khôĐược đề xuất06/02/2021 (UTC+0)
I kept seeing this recommended on Reddit, so I decided to try it and I'm really sticking with it now. This vitamin C serum with ferulic acid is an affordable option. It has the same patented formula as the expensive version - 20% vitamin C, 1% vitamin E, and 0.5% ferulic acid - but they set the pH to 2.4 to cleverly avoid the patent. Plus, the price point is fantastic. I've noticed the most dramatic improvement in post-breakout redness and skin texture. Honestly, I get toning laser treatments regularly and plan to keep doing them, so I started using this more out of curiosity than high expectations. But even accounting for that, these two areas have definitely shown real improvement compared to when I wasn't using it. Another great thing is the pump bottle design, which helps prevent oxidation much better than the competitor's packaging. The pump dispenser is hit or miss - you might end up with a defective one. I heard they changed the pump design after getting feedback, but my experience with the new version is actually worse. The old packaging never leaked, but the new one leaks a little every time I pump it. Everything else is great, but this issue alone made me dock a star. Also, since this isn't officially distributed domestically, it requires direct purchasing from abroad, which makes it pretty inaccessible for people who aren't comfortable with international orders. I use this serum in the morning and apply retinoids at night. Using it in the morning protects your skin from UV damage and free radicals throughout the day. The pH is quite low, so if you have sensitive skin, I'd recommend either skipping it or introducing it very gradually. Store it in the refrigerator to slow down oxidation. Because oxidation is a concern, I recommend using it within 3 months of opening. If you use it too sparingly and stretch it out too long, oxidation will progress significantly and the effectiveness will really diminish. 
ve**********Da dầuDa nhạy cảmDa mụnĐược đề xuất30/04/2020 (UTC+0)I expected this product with 20% pure vitamin C to be quite irritating, but I was pleasantly surprised. Even after applying a generous amount, I only felt a slight tingling sensation for a moment—no significant irritation at all. Overall, I noticed a real improvement in my skin texture and those tired-looking areas look so much better now. The brightening effect is especially noticeable on darker patches of my face. Even after 10 hours, my skin still looked dewy and hydrated—I was genuinely amazed! I got a 20% discount coupon from the official website and purchased it at 4.6. I really wish I could find this product at a more affordable price from a trusted retailer in Korea. The instructions say to dispense it onto your fingertip, but honestly, that doesn't work. The formula is so lightweight and watery that it just runs right off your fingers. Even when I pump it directly onto my face, it slides down immediately and absorbs so fast that I can't spread it evenly across my entire face. What actually works is pumping it a couple of times into my cupped hand and then gently patting it onto one section of my face at a time.
