The Magnesium Ascorbyl Phosphate Reviews & FAQ’s

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  • 61% of the Deciem Addicts LOVE Magnesium Ascorbyl Phosphate
  • 70% say it has improved their skin
  • 66% will repurchase it
Magnesium Ascorbyl Phosphate

The Ordinary Reviews – Magnesium Ascorbyl Phosphate

  • What is Magnesium Ascorbyl Phosphate, and what does it do?
  • When and how do I use it?
  • Which products can and cannot be used with Magnesium Ascorbyl Phosphate
  • Reviews by the moderators of the Facebook Group & Deciem Addicts
  • FAQS
  • Similar products
  • Easy guide to The Ordinary Vitamin Cs
  • Price: 11.50$CAD | 10.50$US | 9GBP | 18.30$AUD | 10.90€

What is Magnesium Ascorbyl Phosphate, and what does it do?

The simple explanation by Deciem

Magnesium Ascorbyl Phosphate 10% (MAP) is a water-based, hydrating cream format that offers specific skin brightening benefits (more so than other derivatives of Vitamin C) in addition to the benefits generally offered by Vitamin C. MAP gets along well with other products and can be used as a hydrating cream to finish off your routine. MAP is incredibly gentle and is a great choice for those who are not experienced users of Vitamin C or those that prefer a cream.

Magnesium Ascorbyl Phosphate Targets

  • Dullness
  • Uneven Tone
  • Signs of Aging
  • Antioxidant Support

When & How Do I Use Magnesium Ascorbyl Phosphate?

You can use this daily in the morning or evening. Apply directly to your skin or after water-based products. As Deciem says, this could be used at the end of your routine as a hydrating cream.

Magnesium Ascorbyl Phosphate Reviews

Which products can and can´t be used with Magnesium Ascorbyl Phosphate?

Magnesium Ascorbyl Phosphate is a derivative and originally had no conflicts, but now Deciem has said that the Vitamin C derivatives should not be used in the same routine as Niacinamide Serum and powder. If you are new to skincare, choosing one of the Vitamin C derivatives would make a great choice as it has the least conflicts.

Reviews of The Ordinary Magnesium Ascorbyl Phosphate

Tracy Cherow,  I loved it! A gentle Vitamin C, easy to apply, but didn’t always play nicely under makeup. Awesome texture, and I was strangely obsessed with the smell 🤔😍

Jen Crampton This is the vitamin C I recommend to anyone starting out or worried about conflicts. It gets along with most products and is lovely under makeup.  For some, it will suffice as a moisturiser.
A great intro to vitamin c 🍊🍊🍊

Nia Patten It’s really lovely. Like an antioxidant moisturiser. My favourite.

Helen, I love this. No need for extra moisturiser, so MAP with a drop of resveratrol & ferulic acid and, followed by SPF. Nice and simple.

Review from The Deciem Addicts

Read more reviews about Magnesium Ascorbyl Phosphate and feel free to leave your own here in the Facebook Group.

SN says: It has helped my skin since day one. I absolutely love it!

VC says:  It’s great. I mix it with The Ordinary Pycnogenol

MC says: I’ve been using it for two months as a light moisturiser for the day, and I think it has evened out my skin tone a bit… or maybe it’s just my imagination😆. Has a funny smell to it, though.

DN says: I have been using it for approx 6 weeks and love it. My skin looks brighter, but I don’t know if it’s the MAP or all the products I have incorporated. It’s my last step in my morning routine before SPF.

CD says: Wanted to love it but does nothing special for me 


Can I use MAP under the eyes? MAP 10% is not formulated for use under the eyes.

Can I use Hyaluronic Acid, Magnesium Ascorbyl Phosphate, and suncream as a morning routine? Yes, that sounds great.

I have Niacinamide 10% + Zinc 1%, Magnesium Ascorbyl Phosphate 10% and Retinol 0.2% today. What´s the best way to apply these? You can apply Niacinamide before Magnesium Ascorbyl Phosphate in the AM and PM. In the evening, you can apply your Retinol 0.2% after Niacinamide but before Magnesium Ascorbyl Phosphate.

Can you use Magnesium Ascorbyl Phosphate 10% with EUK 134 0.1%? Yes, you may.

Which of The Ordinary Vitamin C is suitable for sensitive eczema + mild acne skin? None of our products can be considered medical treatments for eczema. You may wish to discuss suitable treatments for persistent signs of eczema with your physician or dermatologist. With this being said, to begin, we would suggest starting with The Ordinary Magnesium Ascorbyl Phosphate 10%. 

Final Thoughts

Magnesium Ascorbyl Phosphate Reviews

Magnesium Ascorbyl Phosphate is a really well-loved Vitamin C that is super easy to use because it has no conflicts. You can see for yourselves, 61% of the Deciem Addicts love it. A whopping 70% say they have seen an improvement, and 66% will repurchase it.

The Ordinary Routines Using Magnesium Ascorbyl Phosphate

You can find lots of The Ordinary skincare routines here. Magnesium Ascorbyl Phosphate is included in the pigmentation regimen. Because it has no conflicts, you could add this to many different combinations.

Easy Guide To The Ordinary Vitamin Cs

the ordinary vitamin c guide

There are 8 Vitamin C products under The Ordinary brand. 5 are Pure Vitamin C, and 3 are derivatives. The derivatives can be used with everything except The Ordinary Niacinamide serum and powder. If you´re new to skincare, one of the derivatives would be a great option.