What is the expiration of Obagi Vitamin C serum 10% ?
1327248
I think it is printed on the label, I m honestly not sure if it expires. I've used my bottle to up to a year.
1710127
There is no expiration date, I didn't noticed this before, but the serum is ok.
2138344
I checked my bottle of vitamins and I found the expiration date on the side of the label on the bottle.Cindy Neff
1562099
The expiration date is printed on the side of the container of vitamins. I just finished mine, I believe it was said to have expired this coming JULY.
1708221
I don't know, but I have used this serum for 14+ years. I am 64 and everyone thinks of me more like late 40's, at times 50 ... I use several of the Obahi products that were recommended to me by a dermatologist,
1670927
I called B R and they said one year remaining but I can't purchase through them. Only through a naturopathic doctor. Which isn't true. Obviously I found it on Amazon. My date is less than a year but make sure you get a vit-d- 3 hydroxy panel added to your CBC labs. Research the range and dosage. Most conventional doctors don't care.
1562632
I use Retinol by Obagi on a regular basis. I believe this product is authentic. When I started using it I felt it working within a few days. It feels the same as if I used just the Retinol except it has a moisturizing effect.
1864436
Not that I know of. The bottle should last about 6-8p months. I would discard after that. The serum gets brown with time, but that is not an indication that it's expired. Perhaps skinceuticals.com could help further.
1399089
Saw this answer from someone else...hope it helps: "Vitamin C becomes unstable in a relatively short time once it is mixed with a liquid. I had the powder form of C and mixed as needed for about 6 or 7 months then noticed that when I mixed it with liquid the liquid stayed an orangey color,which means the powder vit. C was no longer any good. Time to buy new. And a reason to buy smaller quantities of it."
1014967
Feb. 2017. I just received my bottle about 2 weeks ago. I use only a few drops, mixed in my palm with a few drops of Vit. C serum.
1290851
i'm not sure actually. i am at the office and my vit c is at home. so i will have to get back to you later.
412323
I am almost 47 and I started using this vitamin C serum and I can tell a difference I've been using this for over a month now, I love it
1606955
I believe it's stable even when it oxygenates and turns a darker yellow. I have been using Cellex-C products for over 20 years. First introduced to the "Serum" by Plastic Surgeon's practice then switched to the cream about 3 years ago. Neither seems to lose efficacy over time so I'm not sure they do "expire".
406369
the serum is clear when it's fresh and turns orangey when it's old. I keep my C serums in the fridge so it lasts longer. My box didn't have an expiry date, I assume it's 6 months from what I found out on the web. hope this helps you!
1236805
The current expiration dating on the 10 ct kit is June 2015. We are the authorized Chek Diagnostics distributor.
1759814
I don't have a box to look at right now and I don't see it on the bottle either. Even so, that wouldn't keep me from purchasing. Mad Hippie Vitamin C Serum (and other products in the line) has become very popular, which means stock is being replenished at a good rate and nothing sits around too long. Generally speaking, skincare products are good for two years if left unopened and one year after it's been opened, and that one year is far longer than you would need since the bottle would be used up within a couple of months, if you used daily.
1794369
I haven't noticed an expiration date on the box, however I'm the only one taking Ester-C, so it takes me a while to finish it. If its been sitting for a while, I wouldn't throw it out, I'd take it anyway!