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The packaging for 21.5 is better than 20.. not sure if they changed 20 also.. this one did not leak at all. Previously quite satisfied with 20 .. so decided to go for 21.5.. expiry till 2019.
OPTION:A. C21.5 Serum | To add:B. NONE | Free Gift:A.[BY WISHTREND] Hair ties
Excited to try out the effect of vitamin c.
I have been using the c21.5 vitamin C serum with the vitamin E cream for about 2-3 weeks now. Together with those, I use the vitamin 21.5 mask thrice. I have seen some improvement of pigmentation from acne scarring and also general improvement in skin texture. My skin feel smoother and more tort. Also I see slight reduction in wrinkles especially around the eyes. Thank you for the products. I love this trio.more review
OPTION:D.21.5 Serum + 21.5 vitamin Mask (5 sheets)(+S$8) | To add:B. NONE | Free Gift:A.[BY WISHTREND] Hair ties
Received in good order thumbs up repeat order
Very fast delivery. Great products. 3rd purchase
OPTION:E. C21.5 serum+ vitamin 75 maximizing cream(+S$30.76) | To add:B. NONE | Free Gift:A.[BY WISHTREND] Hair ties
OPTION:A. C21.5 Serum | To add:B. NONE | Free Gift:B. NONE
OPTION:B. 21.5 Mask Sheet (10sheets) + Free 1 Sheet(-S$4.80) | To add:B. NONE | Free Gift:B. NONE
Hi,I have already made a purchase & got my order. My stock was from Nov 2017 (manufactured date). I have not opened my vitamin C serum yet. Is it okay if I open it on February and start using then? Is it safe? Will it get oxidize by any chance? Within how long should I use it?Thank you.
Yes it is fine. It is best to use the vitamin c serum within 2-3 months because that is when it is the most fresh. :)We hope this helps!
Hi, I have already made a purchase & got my order long time back. I just want to check how long can the vitamin c last? I have not opened it yet. I plan to bring it overseas and use it from there. It shows the manufactured date as Nov 2017 (stock). So within how long can I use this product? Is it okay if I open it on February and start using then? Is it safe? And within how long should I finish it?Thanks.
Hi there,Yes it is fine. It is best to use the vitamin c serum within 2-3 months because that is when it is the most fresh. :)We hope this helps!
Hello, do I use the serum before or after moisturizer?
Hi there,Thank you for reaching out to us. You should use it before the moisturizer.We hope this helps!
Hi,May I know what’s the difference between the C21.5 serum and the my signature C Source that you are selling?
Hi there,Thanks for reaching out to us. They are both vitamin C serums. The main difference is that the C21.5 contacts 21.5% vitamin C, where the Signature C source containts 20%. We hope this helps :)
Noted with thanks!
No problem, it's our pleasure to help!
What kind of facial wash can I use together with C21.5 serum?
Hi there, Thank you for reaching out to us. You can generally use any face wash of your choice. We would only recommend you to avoid using any products that contains high level of AHA, BHA (include Betain Salicylate), Retinal, Vitamin C (Ascorbic Acid). The COSRX Good Morning Low PH Face Wash is a good option :)We hope this helps!Best,
Hi,1) Is it necessary to keep C21.5 serum in the fridge?2) what is the shelf-life of C21.5 Serum upon opening?
Hi there,Thank you for reaching out to us. Due to the high percentage of natural vitamin C in the product, it is recommended to store it out of direct sunlight and high temperatures, as this can damage the product. Storing it in the fridge can also help it last longer.The serum is still fresh and best to use 3 months upon opening. We hope this helps!Best,
Dear Wishtrend, I just received my 21.5. As I still have quite a bit of my current skincare, I would like to find out if I can use them together with Vit C (as after watching your video, it seems Vit C needs careful pairing)Toner (100% Pure Rosewater with Glycerin): As this adjusts PH level, will it affect the efficiency of 21.5? Or cause any adverse reaction?Moisturizer: I am currently using Laneige Water Bank... do you have any experience in using Waterbank on top of 21.5?
Hi there,Yes, I think you can use them. you need not to use aha/bha/retinol with vitamin c. Also, there is one product that I want to suggest is[by wishtrend] vitamin 75 maximizing cream.This cream is good at maximizing the effect of vitamin c, so it will boost the effect of it.Please check:http://list.qoo10.sg/item/BY-WISHTREND-VITAMIN-75-MAXIMIZING-CREAM-50ML-FREE-15ML-MORE/505614456?&sellerview=onThank youBEST REGARDS,WISHTREND
Hi, when will the C21serum be in stock again?
Hi there,this item will be on stock within this week :)I am sorry and hope your kind understanding.Thank youBEST REGARDS,WISHTREND
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