Tiam My Signature C Source Vitamin C Serum Review

A few months ago Tamsin from Glow Theory (The biggest K-Beauty retailer in SA) was so kind to send both myself and Shamiela a hamper each of selected products to cater to our specific skin concerns, mine being very dry/ dehydrated skin and light pigmentation. Glow Theory is best known for advising the most appropriate products for your skin care concerns. Mine is pigmentation and one of the products’ I was sent was the Tia’m My signature csource vitamin c serum

*Although this product was gifted all opinions are my own and result photo’s are all true.

Vitamin C Serum

Not being one that has really been into skincare ( but when you have a bestie like Sham, you will start living your best skincare life) this vitamin serum has been lying in my infamous bag (ask Sham) of unused beauty products for a while. The beauty market has taken a huge shift and focus on skincare has grown exponentially. Cue all the K-Beauty stores you know find on instagram.  A special focus has been on targeted skincare/ skincare with high percentages of active ingredients. Many older family members have asked me over the past few months what they can use for “die bruin merke” and I always said Vit C Serum, as this is something I learnt from listening to all the advice that is given on the group.

Benefits of using a Vitamin C Serum

Vitamin C is an anti oxidant that neutralizes free radicals caused by exposure to certain conditions including pollution and UV Rays

  • Anti Aging – Stimulates collagen production, softens fine lines and wrinkles while preventing new ones from forming
  • Hyper pigmentation – Fights hyper pigmentation by preventing melanin production, so it will lighten dark spots but doesn’t lighten the overall skin tone
  • Brightens skin appearance
  • Lightens dark spots left behind by acne ( acne scarring)


The packaging states:

Tiam My Signature C Source delivers a multitude of complexion benefits for beautifully healthy skin. Pure Vitamin C refine, brighten, balance, and tone skin for a radiant appearance.

I always had dull skin, but since using the serum my skin is visibly brighter and even the area around my nostrils that were always red and dark (that I didn’t know were dark until now hehehe) has become much more clearer and my skin tone is also more even and not as blotchy anymore .

 How to and when to use your vitamin c serum

Vitamin C can be used in the morning or in the evening, for the first few days I applied it in the morning and the next few days in the evening. I personally prefer using it in the evening because it makes my face very shiny, so shiny that my father in law asked me what I had on my face.

I apply the serum after cleansing and let it absorb for 5-10 minutes and then I apply my moisturiser, when I apply it in the morning I put on my moisturiser and the my sunscreen .

Things I learnt:

  • Store your serum in the refrigerator, Vit C – This serum is L-absorbic aci,which is pure vitamin C and can become oxidized when exposed to lengthy exposure to light.
  • A tingly feeling is normal
  • Can be applied to your whole face


You can purchase this serum fro Glow Theory for R310

Vitamin C serum is light yellow in colour, once it turns a darker shade of yellow this means it has oxidized and can no longer be used.

I wish I had known about things like vitamin C serum, when I was much younger so I could start using it as a preventative measure instead of a remedy for my pigmentation.

If you have tried this please let us know your comments below

If you want to learn more about this product or any other product that Glow Theory stocks you can come check them out at our Beauty Squad Expo 2019 in OCtober, tickets can be purchased here






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