Vitamin C Serum

Why use the serum?

  • Pros

- Simple ingredients

- Fast and easy to make

- Fights main causes of wrinkles

- Antioxidant properties

- Anti-inflammatory properties

- No preservatives

  • Cons

- Oxidizes faster than other products, needs to be kept in a dark, cool place.

- Doesn't moisturize

Do it yourself!

  1. Measure the desired quantities in a scale. Click here for examples of different Vitamin C Serum quantities.
  2. Pour in dark glass bottle. Alternatively or additionally, you can wrap the bottle in aluminium foil
  3. Add water at room temperature
  4. Shake until everything has dissolved, it might take a while
  5. Store in cool dark place like a bathroom drawer or the fridge

To apply it:

  1. Clean area with water and soap
  2. Pour Vitamin C Serum on hand or cotton disk
  3. Spread evenly across your face or body

Extra information:


Remember Vitamin C is not  a moisturizer. This will be solved in my next DIY, but if you are using the serum wait until it dries to hydrate your skin, since a moisturizing product might reduce the absorption of Vitamin C and the other ingredients in the Serum through the skin.


As I said in the video, it is very important that you try out the products you will apply to your face in a sensitive part of your body like the back of your wrist or the back of your elbow, not only in DIY products but in any kind of cosmetic. There's many different types of skin sensitivities, and you don't know how yours is going to react. Your skin might be extra sensitive to one of the ingredients (you'll need to lower the concentration) or maybe you are just allergic to it. If you do have an adverse reaction, immediately consult your doctor.


There's a warning in the label for products with Vitamin C for people that are pregnant, nursing or taking medications. This is because of the following reasons: there is no evidence that is harmful or unharmful. Because of the lack of evidence, the label must contain the warning just in case. Consult your doctor if you want to take any products containing Vitamin C externally or internally.


Get all the supplies you need to DIY

Vitamin C Serum Pack 200mL (6.7oz)
The whole discounted Vitamin C Serum pack, enough ingredients to make 200 millilitres (6.7oz) of product, which is worth 600€ in any beauty store. (Tutorial below)   It includes: 24g Vitamin C powder, 10g Tyrosine, ... (Read More)
29,99 €
Vitamin C Serum Pack 400mL (13.5oz)
The whole discounted Vitamin C Serum pack, enough to make 400 millilitres (13.5oz) of product, which is worth 1200€ in any beauty store. (Tutorial below)   It includes: 48g Vitamin C powder, 20g Tyrosine, 4g Zi ... (Read More)
59,98 € 49,99 €

International Units

30 mL 12% Vitamin C Serum

(recommended for every other day facial use)

- 3.6g Vitamin C (12%)

- 0.3g Zinc (1%)

- 1.5g Tyrosine (5%)

- 24.6mL Water


100 mL 12% Vitamin C Serum

(recommended for every day facial use)

- 12g Vitamin C (12%)

- 1g Zinc (1%)

- 5g Tyrosine (5%)

- 82mL Water


500 mL 12% Vitamin C Serum

(recommended for every day body use)

- 60g Vitamin C (12%)

- 5g Zinc (1%)

- 25g Tyrosine (5%)

- 410mL Water


US units

If you don't have a scale, then measure the quantities with teaspoons. (Remember that with your first purchase in my store you get a free scale!)


4oz 12% Vitamin C Serum

(recommended for every day facial use)

- 2.5tsp Vitamin C (12%)

- 1/5tsp Zinc (1%)

- 1tsp Tyrosine (5%)

- 2.8oz Water (or 1/4cup + 1tbsp + 1tsp or just fill up the bottle up to the 4oz mark once you've poured the ingredients)


16.9oz 13.3% Vitamin C Serum

(recommended for every day body use)

- 1/3cup Vitamin C (13.3%)

- 1tsp Zinc (1%)

- 1/8cup Tyrosine (5%)

- 13.8oz Water (or just fill up the bottle up to the 16.9oz mark once you've poured the ingredients)


How to calculate any quantity


X mL of Y% Vitamin C Serum

(for any other variations)

Choose a quantity of total Vitamin C Serum you wish to make in millilitres. We'll call this number X. 


- Vitamin C, 5 to 20%

Choose the desired percentage of Vitamin C you want to use in your serum. 

Multiply this number by X (the total mL of serum) and divide by 100. 

That is the amount of Vitamin C grams you have to add to reach the desired concentration.


Ex. I want 750mL of 15% Vitamin C Serum.

750*15 = 11250

11250/100 = 112.5g of Vitamin C


-  Zinc, 1 to 2%

Choose a desired percentage of Zinc you want to use in your serum.

Multiply the number by X (total mL of serum) and divide by 100.

That is the amount of Zinc grams you have to add.


Ex. I want 1.5% of Zinc in my 750ml of Vitamin C Serum

750*1.5 = 1125

1125/100= 11.25g of Zinc 


- Tyrosine, 3 to 8%

Chose a desired percentage of Tyrosine you want to use in your serum.

Multiply the number by X (total mL of serum) and divide by 100.

That is the amount of Tyrosine grams you have to add.


Ex. I want 4% of Tyrosine in my 750ml of Vitamin C Serum

750*4 = 3000

3000/100= 30g of Tyrosine


Don't add 750mL of water. Water has to be the remaining percentage. So you can either put all the ingredients in a 750mL bottle and then fill it up with water (honestly the easiest solution), or you can make more fun calculations!


Subtract the amount of grams previously calculated to 750.




750mL - (112.5g VitC) - (11.25g Zinc) - (30g Tyrosine) = 596.25mL Water to be added to the Vitamin C Serum


Comments: 12
  • #12

    Angie (Monday, 08 January 2018 18:10)

    Hello and thank you for this video. Please can you tell me if you think this is better than a C, E and ferulic acid serum such as the skinceuticals one and why? Many Thanks

  • #11

    ryan t (Tuesday, 10 October 2017 20:24)

    how often should a person exfoliate per week? or monthly?

  • #10

    Debbie (Thursday, 14 September 2017 21:41)

    Please where can buy Ascorbic acid in Europe because the one I bought from you has. If possible please tell me the brand name you trust

  • #9

    Mª Isabel (Sunday, 03 September 2017 17:14)

    Hola Edgar.
    Me subscribi a tu canal en Youtube y me parece genial tu receta para el Serum de ViT C.
    Mi pregunta es acerca del Zinc, ya que indicas se puede usar en pastillas o comprimidos, pero solo los encuentro de Glucanato , Citrato o Picolinato de Zinc, no el Sulfato de Zinc. Lo podrías aclarar.
    Y te invito a que hagas nuevos videos de otros serums como el de Hyaluronic Acid. Exito!

  • #8

    Edgar (Friday, 14 July 2017 22:40)

    Hello Sandra! Well the fact is that your skin cannot absorb Vitamin C over 20% so it's really not worth increasing the percentage as you would only be irritating your skin. If you can't feel anything anymore, congratulations, you have a healthy skin! But really, you can keep using it at 20% or maybe try other things and alternate it with Vitamin C every other day!

  • #7

    Sandra J (Monday, 03 July 2017 04:03)

    I have been using 20% Vit.C from the pharmacy for years, not working anymore. What % should I use with your formula? Going to order from you as soon as I get answer...thanks so much for your video, really opened my eyes to alot of things.

  • #6

    Maya (Friday, 16 June 2017 07:24)

    I loved your videos
    PLEASE make Hyluronic serum with minimum ingredients.
    What is the ratio of ingredients to make 20% vit c serum?
    Also why we don't need to add any preservative since it is a water based serum?
    I will really appreciate you respond on my email address.

  • #5

    Zoyya khan (Monday, 08 May 2017 22:52)

    Hi..I'm a new subscriber ...Thank you for this video...
    My question:
    1)Is this the right quantities?2)can i make this serum with addition of glycerin+vit E and rose water instead of normal water??will this reduce effectiveness of the serum??

    For 30 ml of 15% serum...
    Vit C=4.5 gm
    Zinc=0.3 gm
    Tyrosine=0.75 gm
    (Rose water+ 1 tsp glycerine+ 2 drops of Vit E)=24.45 ml

    Thank You very much

  • #4

    louisa (Wednesday, 26 April 2017 13:27)

    please can i add ferulic acid and vitamin E

  • #3

    Lisa (Wednesday, 12 April 2017 19:00)

    Hi where are you based and do you deliver to Ireland

  • #2

    Edgar (Tuesday, 28 March 2017 15:49)

    Hola Maria! Sí, puedo mirar de hacértelo llegar. Mándame un e-mail a y lo hablamos!

  • #1

    Maria (Tuesday, 28 March 2017 15:13)

    Te sigo en youtube!
    Estupendo todo lo que haces!
    Yo ya hace tiempo que me hago serums y pontinges =)
    Tengo todos los ingredientes menos el sulfato de zinc.
    Lo vendes solo, sin tener que comprar el pack?