the ordinary

The Ordinary Magnesium Ascorbyl Phosphate 10%

The Ordinary Authentic
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The Ordinary Magnesium Ascorbyl Phosphate 10% by The Ordinary


Vitamin C is an effective antioxidant, brightens the skin tone and reduces signs of ageing. In its pure form, Vitamin C is unstable in water. Magnesium Ascorbyl Phosphate (MAP) is a water-soluble derivative of Vitamin C. The Ordinary Magnesium Ascorbyl Phosphate 10% is more stable in water but it is less potent than direct L-Ascorbic Acid.

It is compatible with water but higher concentrations cannot be offered in a low-viscosity serum format and requires emulsification to form a cream. This formula is a light cream that offers 10% pure MAP (very high solubilized concentration).

Aside from the general benefits of pure Vitamin C, MAP has been shown to offer specific skin brightening benefits, more so than other derivatives of Vitamin C (Note: some brands offer "powder" formulations that offer up to 15% MAP.  Such powders would offer less direct availability of MAP as compared to an emulsion such as this formula which has solubilized the complete 10% concentration of MAP. It is extremely difficult to solubilize higher concentrations of MAP in non-powder formulations).


To learn more about how to navigate this brand, click here to read our skincare guide on The Ordinary. 

We suggest this product be used within 12 months after opening.


All of our products are filled/measured by weight/volume so the product is correctly filled to 30 ml. The packaging does not accurately reflect the size of the fill. However, this is intentional as some air must be allowed at the top for the product to actually close.

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Reviews (45)
Review and earn
Beautiful Vitamin C cream - 17-01-2019 by

I have tried so many vitamin C products and this is one of my favourites. I like the way the formula inst powdery like some vit C creams can be. It also really does what it promises brightens the skin tone & anti aging. I love The Ordinary and have tried most of the products now, they are so affordable and they really do what they say!

good for the price - 15-01-2019 by

it brightened my skin a bit but i avoid it because of the smell. however, it does a good job for its price.

Better options available - 24-12-2018 by

I find the texture and smell of this product highly unpleasant! The product would definitely not be suited towards oily skin and there is lots of pilling occuring when I use this on my face. It is a gentler form of vitamin C and as a result there is no stinging associated with its use. I did notice an improvement in my skin over time, but I simply do not think it's worth the hassle of using it. There are better vitamin C options out there, including in The Ordinary's own product range!

Haven't used as much as I would have liked because of the smell - 20-12-2018 by

I purchased a range of 'The Ordinary' products and this one has been my least favourite because of the smell. I haven't used it enough to decide if it's valuable or not because I can't get over the lack of fragrance. And, to be fair, I was aware that this was a factor in buying a product like this, at this price point, and reading other reviews, I knew this was something that bothered others. In saying that, once I get through my niancinamide and squalene, I will give it another shot.

Best stuff for dull skin - 20-12-2018 by

Seriously good stuff for skin dull in complexion and pigmented. Only use a tiny as it is thick in texture, but i really like knowing i am wearing a product that helps with antioxidants

First time experiencing pilling! - 20-11-2018 by

This review covers the following The Ordinary products:

Niacinamide 10% + Zinc 1%
Hyaluronic Acid 2% + B5
The Ordinary Magnesium Ascorbyl Phosphate 10%
The Ordinary Vitamin C Suspension 23% + HA Spheres 2%
The Ordinary Natural Moisturizing Factors + HA 100ml
The Ordinary Caffeine Solution 5% + EGCG

I was recommended The Ordinary products by a friend who also has dry, sensitive skin prone to redness. I'm male, 50.

When trying new products I try to get all the recommended products within a brand's range to give it a solid go. The first thing about The Ordinary products is trying to workout exactly what was suitable for my skin. Adore Beauty has a guide on its site but I also did a lot of Googling and came up with the list above.

Price is obviously an attraction to this product line. I've been using the products for about a month now & am really struggling to see any benefit particularly as I've experienced things like 'pilling' which I'd never heard of or experienced before using The Ordinary. It's really annoying & the only way around it is to use only one oil based product at a time.

My morning routine is buffet, niacinamide, hyaluronic acid followed by the moisturise & eye gel. Most of these serums are gel based and while they soak in quite well between applications they leave my skin feeling tight so I have to put on my regular other brand moisturiser.

In the evening I omit the niacinamide and put on either the Magnesium or the Vitamin C oil based creams. I then finish with another brand's moisturiser.

Perhaps it's too soon to see any results but I definitely need more moisturising creams than these water based serums. I like The Ordinary moisturiser which absorbs well while still being lightweight. The serums leave my skin shiny which I don't like & they don't calm any razor burn even if applied over my post-shave balm.

I'm still undecided as to whether I'll buy these products again. If I do it will be because of the price & I might regard them as 'fertiliser' nourishment for my skin rather than an everyday routine.

I love this product!!! - 19-11-2018 by

This is one of my favourite products by The Ordinary.

I first purchased this product a while ago after Stephanie Nicole recommended it - I love her skincare reviews.

I love the consistency of this product and the price point is also fantastic, although I feel it runs out quicker than I'd like.

For reference my skin is oily/combination with occasional breakouts and I am 29.

I've repurchased this product countless times now and it layers well with other products I use.

Feels good on the skin - 13-11-2018 by

This product helps to brighten the skin without being too strong. I also love the vitamin c 23% however this can be strong so this is also good to help brighten for sensitive skin

Brightening - 12-11-2018 by

Brightens your skin and gives you a healthy glow

Would recommend - 07-11-2018 by

I think that given they’re a CF brand and the price, I would recommend trying it regardless of whether or not it worked for me... but it is helpful that I find its working. The smell isn’t unpleasant and I like the texture. It’s definitely making my skin look better every day.

It's a no from this discerning Vitamin C junkie - 30-10-2018 by

I love my vitamin C and know it has incredible benefits for my skin. To give you an idea I have tried the Philosophy, Drunk Elephant, Kiehls and now The Ordinary Vitamin C offering hoping to find a cheaper option to the aforementioned products I've tried.

Unfortunately I was severely disappointed in the grainy texture which takes awhile to smooth out, the fact that it doesn't layer well with other products, feels quite greasy on the skin and doesn't play well with any of my silicone or oil based foundations. This is a greasy, pilling mess on my skin and whilst I did try patting it on at night I really felt like I'd rather go back to a more cosmetically elegantly formulated product. My favourite still remains the Kiehls Vit in C Serum (I think it goes by the name of Powerful Line Reducing Concentrate but don't let the name fool you it's perfect for younger people with concerns like skin texture and clarity).

Great for brightening dull skin - 29-10-2018 by

I like using this as at night before bed, and under make up in the morning. My skin is noticeably brighter and hydrated after just 2 weeks! A little goes a long way though so use sparingly, and if you're wearing it under make up make sure you give it 5-10 minutes to absorb before you add primer/foundation on top.

Don't be put off by reviews... - 29-10-2018 by

I nearly was, but I'm so glad I went ahead and purchased anyway!

I use this every morning after cleansing and my face is instantly brighter, not to mention beautifully hydrated. I don't even have to use moisturizer after this which was a great surprise as I have dry skin..this means my moisturizer will last twice as long as I only need to use it at night now, winning!

I use this around my eyes which helps with the dark circles and it doesn't irritate them at all, in fact it doesn't sting or tingle at all either.

I haven't had any issue with it balling up under make up (I use T.O. High Fluidity Primer following this) and the smell isn't bad! It just smells a bit "chemically" and it disappears about 5 minutes after you have applied it!

My only tip is to be careful of how much you squeeze out of the tube, as you don't need much. A very light squeeze equates to about a pea size which is all you need :) if you're on the fence about this one, go ahead and try it!

The Ordinary virgin - 23-10-2018 by

After reading many reviews about how great The Ordinary brand is for the money I thought I'd jump on the band wagon and try a product! I have very sensitive skin so was hesitant to try any of the stronger products so I started with this one. I've only been using for a week but my skin does feel softer, next time I will purchase a stronger vitamin C product. The price point is amazing and you definitely get a bang for your buck!

Fabulous! - 18-10-2018 by

I’ve been using this for a month, after The Ordinary Niacinamide 10% + Zinc 1% and before The Ordinary Natural Moisturizing Factors + HA. I have combination skin with a tendency toward dryness and found that, while this is marked as a hydrator, I needed that extra moisturiser to finish my drier patches (but if you’re a bit oilier it’d probably be great as a lone moisturiser). I wouldn’t wear it under make-up, as it has a tendency to ‘ball up’ a little under foundation. That said, I absolutely love it as part of my night routine: It’s made my skin so much brighter and given me a healthy glow!

Big fan - 17-10-2018 by

I have loved using this product since purchasing it. My skin texture has improved, you don't require much product and it is very hydrating without being oily and uncomfortable.

I have seen reviews that complain about the smell, it doesn't smell like roses and unicorns because it is a REAL product. I don't mind the smell and if you're not moisturising your nostrils, it's honestly fine. Big fan!

Works well - 10-10-2018 by

Really great for the price. It's pretty effective at brightening my skin and I like this form of Vitamin C because it is more stable and can be layered with niacinamide. As a person who needs to treat their acne while fading their scars, this product is great. I just don't really like the packaging because it's hard to control the amount of product I squeeze out.

The Ordinary Magnesium Ascorbyl Phosphate - 28-09-2018 by

It delivers! Does everything it claims it will do. Leaves my skin feeling and looking smooth, bright and fresh, without making it oily. I find it works great under makeup applied prior to a primer.

Visible improvements in just days - 17-09-2018 by

When it comes to my skin, it's a trifecta of combination + sensitive + the early signs of ageing.

The product has a lovely texture (and smell) and a very small amount goes along way. I've been using this AM and PM in combination with their Hyaluronic Acid 2% + B5 and my skin is looking amazing after just 3 days.

Gone in the dryness on my forehead, and my skin's tone and texture has already improved.

Appalling smell - 10-09-2018 by

I really want to like this cream as I really love other products of The Ordinary, and I've persevered with it, but it smells truly disgusting. (: It smells a bit like off cheese. I think over the course of the day the smell wears off, but in the early stages if you happen to touch your face, even your hands smell bad. Although I'm sure it would be a great product if used consistently, I really don't want to leave the house smelling like that. Would definitely repurchase if the product had a tolerable smell.

A little goes a long way - 31-08-2018 by

This light cream formula of vitamin C is just perfect. No irritation and only a very small amount needs to be used. I use it morning and night as advised by the Ordinary. After my Hyaluronic Acid 2% + B5 in the morning and after the Granactive Retinoid 2% in squalene at night. Very hydrating. Skin looks great after 5 weeks :)

Brightest skin ever - 31-08-2018 by

This Vitamin C cream is perfect for the daytime because it instantly transforms your skin! I use this as my daily cream before I put on makeup, and the difference is unbelievable: I've never had to use so little foundation! The Ordinary's so effective.

Good vitamin c derivative, mix with niacinimide for maximum brightening - 22-08-2018 by

I have dry and sometimes sensitive skin. I bought MAP to use on the days that I’m not using my stronger vitamin c 30%. I love that I can mix MAP with my niacinimide serum (which I can’t do with the pure vitamin Cs). This is a great product - easy to use, feels nice and smooth when applying and it works well as a makeup primer too. I use lots of products that focus on skin brightening and I’m sure MAP has helped as part of the mix.

For aged, dry skin - 20-08-2018 by

Not great if you have oily skin. It does absorb quickly and is a great base under my make-up. I use it after my toner and serum and before any SPF / makeup so it's great moisturiser to keep ageing skin looking plump.

Good - 13-08-2018 by

I thinks this product is good but the consistency is quite heavy for a oily skin like me. the smell is awful only last for a seconds tough. I think I will prefer to try something with different consistency.

Great product - 13-08-2018 by

Like all ordinary products, this is great quality and does what it says.
I find my skin has high tolerance to vitamin C as well as retinols so use the opportunity to increase the % every time I finish a bottle. I have to say I like the consistency of this one much better than the 23% so will be going back to this one!

Gets you glowing - 09-08-2018 by

I find that when I pair this with my normal night cream I wake up in the morning looking WAY fresher. I swear this cream brightens and evens my skin texture while I sleep. Also works a treat paired with the Granactive Retinoid 2% twice a week.

When I purchased this my skin concerns were fine lines/aging, skin texture and enlarged pores. My skin is pretty sensitive and I'm super happy to report that I get no reactions from using this cream.

Right now I use a pretty extensive collection of The Ordinary products in my skincare routine - Niacinamide & Buffet serums in the every morning after cleansing and toning,which severely helps the pore situation, then Vit C every night right before/combined with my moisturiser. Granactve Retinoid 2% + Rosehip Oil twice a week at night which tightens, brightens and gives my skin a youthful glow. Amaaazing.

Smooths and brightens skin - 06-08-2018 by

This was my first Vit C purchase and it doesn't irritate my sensitive skin at all.
I use this as a night cream every 2 or 3 days and my skin is noticeably smoother and refreshed in the morning. Has a bit of a smell coming out the tube but that disappears quickly. Would definitely buy again.

Beautiful - 03-08-2018 by

I really like this product as an easy to use intensive moisturiser at night. Absorbs well. Not sure if it has lightened pigment yet but I like to think so.

May be better used at night - 13-07-2018 by

Definitely does what it says and brightens the complexion. The cream is quite thick and possibly better suits dry skin types. My only issue with this is that it balls up or peels off during the day. I have dark hair and looks like I have dandruff all along my hairline. I have switched to using this at night to avoided the my face of peeling off look during the day.

My favourite go to skin cream - 13-07-2018 by

I have sensitive and dry skin and have tried a number of expensive brand face creams over the years but have not found any that come close to this product. Leaves my skin feeling soft and dewy without feeling to heavy or thick. With regular use, my skin becomes clearer and smoother. I don’t know why I kept trying other products when this one is consistently the best. I won’t be going back now!

LOVE LOVE LOVE - 25-06-2018 by

I have sensitive oily/dewy skin. I did read the guide beforehand so tried the MAP for sensitive skin rather than the Vit C Suspension as mentioned. MAP sure does brighten the skin tone as it says and keeps your skin hydrated but not greasy/shiny. I used this straight after toning then used moisturiser on top and it just leaves your skin feeling silky smooth and bright! I love it. Absorbs quickly and doesn't leave a sticky feeling or pill. My only negatives is that I've used this AM and PM for 2 weeks and I've nearly finished the tube, where as my day moisturiser 37ml will last me 3 months. Will I repurchase? probably yes =) My other gripe is that it does have an awful smell (like vomit) but luckily it doesn't last long. Overall, great product to brighten and even out complexion and control skin hydration.

Foul-smelling, leaves a greasy residue - 20-06-2018 by

This was my introduction to vitamin C products. I decided to start with MAP because it's supposed to be gentle and non-irritating. However I could only bear to use it a couple of times due to the strong smell (in between vomit and old wet cardboard), and the gross texture (a thick oily cream that left a filmy residue on both face and fingers). I contacted Adore and they kindly sent me a replacement, but that was exactly the same. I've read reviews by people with very dry skin (and apparently, a really bad sense of smell) who find MAP pleasant. This might be an effective and gentle form of vitamin C but unfortunately these other issues prevented me from using it long enough to find out. I'd give this zero stars if I could. :(

Does its job - 18-06-2018 by

This is a very gentle vitamin c serum that can also be used as a serum/moisturiser (if you have oily skin). It definitely has a brightening factor, but I think it might be more hydrating formula than vitamin c ingredients. I have dry sensitive skin and this is very gentle and nice to use; probably even too mild/gentle. I prefer other Deciem vitamin c serums, like the Hylamide C25, as the vitamin C is way more effective. Ultimately a nice product but I would not repurchase for my dry/sensitive/late twenties skin.

Good daily treatment - 11-06-2018 by

I have normal, not sensitive skin and was looking for a concentrated overnight treatment and found a really good one on this product. It has virtually no smell, had a thick consistency and thus far it's keeping my skin looking good. It's a great product for the price it costs.

Didn't see much discernable effect - 07-06-2018 by

I have used up one bottle of this. It didn't really do much for me - yeah, my skin has brightened over time but I feel that's because of products I was using in conjunction with it, as they were already working before I started using this product. Maybe it's just not enough for me, or I don't have enough pigmentation issues for it to have a noticeable effect on me. I've found the 23% vitamin C with HA is a lot more effective (even though it's more unpleasant to use).
I wouldn't give it a 1 star as it didn't actively do anything bad to my face, it just was a bit disappointing as it didn't do much for it either.

In addition, it's kind of strange as it's got a light moisturiser texture but you need to use quite a lot to cover your face, and I don't find it moisturising enough to use as a top layer (even with combo-oily skin). Because I add another moisturiser on top, any makeup I wear on top tends to pill because of too many layers.

Another thing is that towards the end of my bottle it turned a little bit yellowy-orange. Does that mean it started to oxidise? Anyway, overall, it didn't work for me.

Brightening, hydrating, affordable! - 12-05-2018 by

I absolutely love the cream consistency of this Vitamin C product! It works as an extra layer of hydration and spreads really evenly. I definitely saw a brightening to my skin after a month or so, and my freckles are less visible.

Make sure you store the cream in a cool, dark place though, my first tube went off within 5 weeks from getting too warm. The second has lasted me just fine!

Yes! - 08-05-2018 by

I really like that one, much more than another vitamin C product from The Ordinairy I’ve tried before. I like that it is a light cream and that it actually works. I’m very happy. If only it was as cheap as the other version... but - you can’t have everything : ) I will repurchase.

Lovely Vitamin C - 19-04-2018 by

Bought this to add a Vitamin C to my regime. As I have extremely sensitive skin, especially after going through "the change", I was a bit reluctant to try something new. I went with The Ordinary as it had just 10% Vitamin C, was a good price, was well reviewed, was fragrance free, and if it didn't work, I hadn't spent a lot of money. I am almost through my first tube, and have ordered 3 more so I don't run out. Love it. No reaction, no sensitivity, my skin is behaving itself and I my sun spots (freckles) have diminished somewhat. I mix it with my serum in the morning before my sunscreen. Would highly recommend.

Really works - 05-04-2018 by

My skin looks brighter and healthier after using this for just a week

Love It - 25-02-2018 by

This cream does what it says, it brightens and freshens the face. I love it. I will say though if you have sensitive skin make sure you add a water based serum underneath it as it can sting a little without it. Because I have hormonal acne and a little rosacea, I cleanse, tone, then add a water based serum first. This acts as a barrier. Don’t apply it to sun affected skin, it will sting. Just use a little. Very happy with the results.

A beautiful cream that does what it says! - 07-02-2018 by

I love The Ordinary, and have been delving into their products thanks to AdoreBeauty. This Vit C cream is wonderful- my skin is brighter, smoother and so much softer.
The only gripe is a minor one to do with the consistency of cream in the tube- too easy to dispense too much product, so it doesn’t last long enough. I might try the 12% vit c just for the dropper application. Otherwise, 5 stars!

Great for small areas - 29-11-2017 by

I used this on my face, neck and decolettage. It is great - it's effective, has a lovely texture, no stinging, etc. However, I used it up too quickly. It's cheap. I could buy more, but I'm going to try one of the serums this time to see if I can make it last longer. If this was a body lotion (in a litre bottle) I'd be smothering myself in it.

Delivers results quickly - 21-11-2017 by

I have been using the ordinary for just over a month and am seriously impressed! I use this product during the day, paired with 'The Buffet'. It has noticeably improved my uneven skin tone, and I have experienced no negative skin reactions (i'm very sensitive). My one misgiving is that the texture isn't great for pairing with makeup, it can sort of peel off during the day. I'm finding that I have to use it sparingly, and use a primer on top if I'm using foundation after.

Love this stuff!! - 21-07-2017 by

My skin love The Ordinary!!!! After spending so much money on high end creams and moisturisers, this affordable one has pleased me!!! It has a silky rich texture. I use it after exfoliating my skin with Medik8 White Balance Cleanse. It get absorbed quickly on my skin and after few seconds my skin feels really hydrated and plump. My skin looks brighter and smoother after application. I wear my makeup too on top of it. Overall, its a great multitasker. Getting many compliments already on my complexion lately.

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