When Skincare Goes Bad – How To Know When Your Vitamin C Has Oxidized

When Skincare Goes Bad – How To Know When Your Vitamin C Has Oxidized

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Vitamin C Products:
Sweet Chef Ginger + Vitamin C Serum https://go.magik.ly/ml/1857n/
Pacifica Glow Baby Vitamin C https://shop-links.co/1743647443862983970
Glossier Super Glow Magnesium Vitamin C Serum https://go.magik.ly/ml/1857z/

Beauty Pie Vitamin C Capsules – https://shop-links.co/1743648442094074852
This is not sponsored but I have worked with them in the past! Back then they were kind enough to provide $50 off for any of these products with code CASSANDRASENTME

Jumiso Vitamin C https://shop-links.co/1743647664989340011
Indeed Labs Vitamin C https://shop-links.co/1743647515577471594
Covey Vitamin C https://shop-links.co/1743647810768584579
Wander Beauty Vitamin C https://shop-links.co/1743648157202290965

The Ordinary Ascorbic Acid 8% + Alpha Arbutin 2% Vitamin C https://shop-links.co/1743648541276484604
Inkey List EGF Vitamin C https://shop-links.co/1743647850840981762
Dear Klaris Vitamin C https://shop-links.co/1743647825072617591

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Skincare Recommendations & Favorites From Amazon:

πŸ”΄ Although I have over 1000 videos on skincare and acne I realized sometimes it’s still hard for people to remember which acne products I recommend, vs those that I think are a waste of money! I decided to create this helpful skincare list of breakout and other skin products that are acne-safe, that I personally recommend and put them all in one place! I hope you find this helpful- enjoy! Check out Skincare + Clearing Acne on Amazon! https://rebrand.ly/AmazonSkincare

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Cassandra Bankson


  • My vitamin c serum looks cloudy white.. Is it expired?

  • If I put it at night will my skin become darker!! Because the light in my room or only the sunlight makes it oxidizes??

  • Pycnogenol

  • Love your content 😘

  • I like the way you explain things

  • cool

  • Cassandra I opened my timeless vitamin c 20% serum a week ago the serum said it was made in march 2021 and the product says best used within 3 months of opening mine was sealed and never opened before but it already had an orange brownish colour once i first opened it so is it actually possible for vitamin c to oxidize inside their own bottles when they're completely sealed and away from light or air? Can maybe heat alone help it oxidize in the unopened bottle? Or is the color not an indication and as long as its sealed its good as new? I really cant find any answers for this and I was hoping you could help :/

  • Every single time I’ve purchased the timeless c it oxidized within days πŸ™

  • You say Vitamin C is good for wound healing…. I'm someone who injures myself a lot, is it alright to put my face serums on the scrapes I get?

  • I am looking for a vitamin c product to replace my very expensive Obagi 20% vit c serum. Love it, but don’t love the price! Thanks for all you do to educate us!!! 🀍

  • I buy vitamin c wtih pump version bottle and the with dark bottles, and keep them in container so less oxygen, less heat, no direct contact to air because of pump packaging

  • My mom and grandma both had reactions to parabins where their eyes swell shut. Parabins we’re the only thing that did this. So I just steer away from them just out of caution.

  • 5:14 after she said that, I literally took a pencil and went to my bathroom and did it, also with my makeup. Dont know why I never come up with this idea. Now I dont have to do smell and consistence test

  • Cassandra, very informative video πŸ™‚ What do you think of peptides and growth factors? Dr. Anthony Youn says that they might help to tighten saggy skin? Can you please make an educational video about them? πŸ™‚ I like the way you explain ingredients πŸ™‚

  • Yes !! Exactly what I subscribed for !! I’m still a little confused about the antioxidant aspect along w the redox reactions but getting there. Thanks for keeping us informed !! You’re goals

  • Cassandra, I just found your channel, and I'm so happy because of that! Sounds like "what?" yes really, I'm from Poland. You! just forced me to use my sunscreen every day! and to try The Ordinary AHA, BHA. Thank you!

  • You have inspired me to study skincare. Thankyou for your chanel, I absolutely love you!! β€οΈπŸ‡§πŸ‡Ό

  • When it gets oxidized,it changes it's color plus form. If it is serum,it is turned out to colored water and if it is oil ,it changes color plus it gets irretrievable ,once you apply simple

  • Hi Cassandra! What do you think of the efficacy of 3-0th ethyl Ascorbic & Tetrahexyldecyl ascorbate? Are they as good as pure Ascorbic Acid?

  • If I'm using a product that's very prone to oxidation, I buy sample packets and use those! One pinhole in the packet to dispense. I use till absolutely empty (cut open for last bit!) I get at least 5 uses per pack of absolutely fresh product.

  • Yes, please!!! A video explaining how self-tanners work is a great idea! πŸ˜πŸ‘πŸ»πŸ‘πŸ»

  • Hey Cassandra

    Could you please make a video on brand regimen lab, vitamiX and level serum

  • You are the light at the end of my day! I hear blah blah. blah from everyone and before I go to bed… I just want to hear about skin care! From you!

  • Cassandra. . Will you please do a review on Avon skin care?? I use it and there are so many ingredients that I have honestly no idea if they are safe or not. I've used Avon for yrs along with my mom Gma aunt etc. . It would be so interesting. The brand is 135yrs old I believe. . .

  • I feel so smart just watching these videos thanks lol

  • PLEASE react to Nikkie Tutorials new beauty / skin products "Nimya!" The ingredient lists are out

  • I keep them in my skin fridge!

  • I bought the Versed Vitamin C serum and it looked like the browned (expired) one you showed the moment I opened it lol so Pro-Tip, don't buy Versed?

  • Could you do a review to NuSkin face products, it’s an MLM that a friend sells and it interest me, but I’m not sure if it really work and if it’s good on the skin long term, I have a skin sensitivity and worries me that my crack my skin and make it worse. Thank you!

  • Vitamin C should be stored in the FRIDGE.Never leave it in the bathroom. ( Same with retinol).
    Idk why no one talks about it. 🀦🀦

    I have a vitamin C serum for almost one year in the fridge and it looks brand new.

  • Thank You for your knowledge cheers from Pennsylvania πŸ‘πŸ‘πŸ‘πŸ‡ΊπŸ‡ΈπŸ‡ΊπŸ‡ΈπŸ‡ΊπŸ‡Έ

  • I have never had this happen. I use Maelove, Timeless and Geek and Gorgeous. I keep in the fridge and use up within 3 months.

  • My everyday skincare product never last more than 3-4 months tbh, i usually stock 2 most rarely 3 bottle each. 🀣so i never have this kind of problem. If this happen to me i'll be so sad.

  • I had the Ordinary’s vit c in silicone oxidise, but only on my skin. It came out of the tube perfectly white, but it stained my nails an orangey brown colour, and it got into my pores and looked like I had weird orangey brown blackheads all over my skin. It basically turned itself into self tanner. Not good.

    I bought the Milano CC and that’s been fine, so maybe it was just that Ordinary one?

  • I would love to hear your thoughts on Aveda products.

  • Another silly thumbnail

  • I cant believe u stopped tossing ur products up in the air because some people didnt like it.. lol Cassandra you are too nice!! some people wow..

  • Wondering what u didnt like about the ginger sweet chef product??. I didnt plan on trying it but just curious

  • Hey Cassandra, does tretinoin 0.05 work on acne spots??
    Btw your vibe 😘

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