Paula's Choice RESIST C15 Super Booster


83 reviews

67% would repurchase

Package Quality: 4.0

Price: $$$

Package Quality: 4.0

Price: $$$

Not tested on animals


Water, Ascorbic Acid (vitamin C/antioxidant), Ethoxydiglycol (slip agent/penetration enhancer), PPG-26 Buteth-26 (emulsifier), PEG-40 Hydrogenated Castor Oil (thickener), Tocopherol (vitamin E/antioxidant), Ferulic Acid (antioxidant), Sodium Hyaluronate (skin-repairing ingredient), Acetyl Octapeptide-3 (cell-communicating ingredient), Glycerin (skin-repairing ingredient), Panthenol (skin conditioning agent), Sodium Metabisulfite (stabilizer/antioxidant), Triethanolamine (pH adjuster), Phenoxyethanol (preservative).

on 3/2/2015 3:21:00 AM

Age: 30-35

Skin: Dry, Fair-Medium, Not Sure

Hair: Brunette, Wavy, Medium

Eyes: Blue

Pros - Mild to moderate brightening of the skin

Cons - Whoa, expensive! Also, it doesn't last long - so if you're not sure you're going to use it religiously, don't bother. You won't get through the bottle before it breaks down and becomes useless.

Instead, I am using their new 25% Vitamin C spot treatment. It's more expensive, but here's the thing - you don't have to use nearly as much. In fact, I only buy the sample size (19$).

The 25% spot treatment is stronger, more effective, and I enjoy the lotion texture compared to this product's watery texture.

on 2/24/2015 11:28:00 AM

Age: 25-29

Skin: Combination, Fair-Medium, Cool

Hair: Black, Wavy, Other

Eyes: Black

I like paula's choice products, have several of them in my skincare routine. Unfortunately not this. I bought into the hype and purchased this during the sale for $45, usual price it retails for $65 I believe. The first few times I applied it, it seemed like a miracle and brightened my skin giving it a glow. I was really wowed and thought finally something that can rejuvenate my dull skin. However after the first couple of times, the effect seemed to have diminished and whether I apply this or not doesn't make a difference to my skin.

It probably works better on someone who needs help in fading acne scars or marks but I typically have clear skin, just dullness and dryness so this didn't help.

Not repurchasing, the good point though. I did not break out.

Age: 25-29

Skin: Sensitive, Medium, Not Sure

Hair: Brunette, Other, Other

Eyes: Hazel

Just ran out of my second bottle and was incredibly sad. I typically don't try Vitamin C products because I'm more concerned with fine lines and pores than I am pigmentation. However PC anything, I will try at least once. I was pleasantly surprised with this, it stung a little bit, as many active products do, but I was able to tolerate twice daily application when mixing it with face oils. I eventually started applying it around my eye area too, which is when I truly fell in love. When using this at night, I woke up looking way more rested, the skin looked firmer, less puffy and fine lines were definitely minimized.
Definite repurchase.

1 out of 1 people found this review helpful.

on 2/8/2015 1:00:00 PM

Age: 56 & Over

Skin: Very Dry, Fair, Neutral

Hair: Other, Straight, Fine

Eyes: Hazel

I like this product because it's a booster and can be used mixed with all my other products (as those of you who read my reviews know, I am a product junkie).

This is a combination of 15% stabilized vitamin C (l-ascorbic acid), antioxidant vitamin E, ferulic acid, and peptides. It claims to repair visible signs of aging and stimulate collagen production for smoother, brighter, and firmer skin. I like the combo of C and ferulic acid and it does seems to lighten and smooth skin quite well. As a prior reviewer reccommended I am storing it in a tempurature controlled drawer because one bottle lasts up to 90 days and I want to keep it fresh.

2 out of 2 people found this review helpful.

on 12/28/2014 7:24:00 PM

Age: 44-55

Skin: Dry, Fair-Medium, Warm

Hair: Brunette, Straight, Coarse

Eyes: Brown

Yawn: another Vitamin C miracle snake oil !!!
I didn't expect much to begin with but PC has a good return policy from my previous experience. and so I placed one in my order.
In fact, they made a mistake and end up sending me 2 for the price of 1.

I've been using it under my night cream for a couple of months now, and recently I found my foundation looks heavy & rather unnatural looking (for a man). In fact, I still used the same fdn. routine as usual, what happed was my skin has got much better that a tinted moisturizer will do, and no concealer. The only difference is using this product and Forma treatment from the dermatologist. But I gave credit to this product because Forma is just a firming treatment, it does not brighten or lighten dark spots.
I have 2 dark spots on my lower lip that looks like its dotted on by eyebrow pencil, now it is more like a light taupe colour.
I like this more than the Ester C-15 by Perricone, and the price is easier to swallow too.

3 out of 3 people found this review helpful.

on 12/21/2014 12:57:00 PM

Age: 19-24

Skin: Normal, Fair-Medium, Neutral

Hair: Brown, Wavy, Medium

Eyes: Black

The C15 booster is a holy grail product! I've been using this serum since the beginning of August and I am on my third bottle! The price is steep, however, using discount codes allows me to purchase it. I refrigerate my bottle because it slows down oxidation. My second bottle was still clear after 2 1/2 months, usually the time when it turns yellow, orange, and then brown rendering it useless. The C15 booster smells like hot dog, when you refrigerate it, the smell goes away. I use 4-5 drops of the serum every night, after cleansing my face with Paula's Choice hydralight and moisture boost or CeraVe foaming.

Now, on to the performance of the serum. Back in August, I had many acne scars which wouldn't budge after several months of them being present. After using the serum for a few months, I noticed the acne scars fading. To accelerate the results, I began to use the serum straight after washing my face. I used to use it after applying the Hada Labo arbutin lotion (aka toner) but I guess using it slowed down the effect of the C15. Now, many acne scars have faded! My face looks very clear and some people ask me what I do to my skin to make it look that way. I also had a tanned forehead and chin from sun damage, the hyper-pigmented areas have lightened up making my skin look more even. Now when I get any pimples, I'm not scared of their scar because I know my C15 booster will fade them quickly.

I think most people will benefit from using antioxidant serums. Antioxidants can boost your sunscreen's protectiveness. You must wear sunscreen when you're out or else your efforts will be futile. I use the Biore uv watery essence sunscreen spf 50 pa +++ and apply 1/4 tsp to get the advertised spf 50 and pa +++.

I plan to use the C15 booster for as long as I can :D

4 out of 4 people found this review helpful.

on 12/7/2014 9:03:00 PM

Age: 30-35

Skin: Sensitive, Fair, Warm

Hair: Red, Curly, Coarse

Eyes: Blue

Love this! I really see a difference in the clarity of my skin with regular use. I use this straight up in the morning before moisturizer...I don;t mix with another product/serum like it states to do in the instructions. It does have a smell to it like some other vitamin C products (faintly like hot dogs). And the packaging is not the best as there is some leakage sometimes off the top when dispensing the product, but all and all I'm pretty happy with it.

1 out of 1 people found this review helpful.

on 11/25/2014 8:39:00 AM

Age: 36-43

Skin: Acne-prone, Fair, Cool

Hair: Blond, Wavy, Fine

Eyes: Green

Due to the price of this, I only got a reduced size, sort of like a luxury sample containing enough to last me about a month. After about a weeks use I noticed my skin was getting patchy and uneven. I discontinued and my skin cleared up and went back to normal. I then tried two more times to use it for a week or so, but again my skin went patchy. It didn't break me out, it just messed with my skin's balance in a way that made it look less healthy.

1 out of 1 people found this review helpful.

on 11/23/2014 9:02:00 AM

Age: 25-29

Skin: Dry, Fair-Medium, Neutral

Hair: Other, Other, Other

Eyes: Hazel

For the first 3 months I thought I would be agreeing with the tonne of people that said this isn't great, but then I changed how I used it and instantly my skin is brighter with my post-inflammatory hyperpigmentation and melasma fading more each day.

Instead of using it as a booster with other serums and the products from the resist line, I have started applying it straight on to my skin. A lot of people don't do this because it's quite tacky, but I find it absorbs into my skin after a few minutes no problem.

Originally I was mixing it in with the resist retinol serum and getting no results. Now at night I apply PC 8% AHA gel, wait 15mins, apply C15,wait at least 5 mins before following with the retinol serum and moisturiser. I have also started using in the morning straight after cleansing, again waiting at least 5mins before applying the resist brightening treatment, mosituriser, sunscreen then make up.

I read an article recently that suggested that ascorbic acid and niacinamide can reduce the efficacy of each other. I don't know if its true but it prompted me to change the way I use it and instantly saw results that are ongoing and very positive.

I keep this in a dark cabinet, but recommend refrigerating it as there is more product in this little bottle than I expected and it is likely to go off before I use it all, even now I'm using 3 drops twice a day.

So if you are not seeing positive results after a few weeks, try applying more frequently by itself so it can do its own thing, and don't be too conservative as this does go off and you want to maximise the value.

Edit Dec 27: although this HG product absolutely deserves 5 lippies, the packaging is very problematic. After reading so much feedback on breakages I have been super careful, but last night I bumped it and it rolled over into the sink and broke, in what would only be a few inches roll at most. This would not have happened if the bottle was not round and the glass so flimsy, although I accept the PC verdict that VitC is better in glass. The dropper also completely shattered inside the vessel rendering everything useless and unsalvagable. Also the removable dropper obviously means that the product is exposed to air each time you use it, a no-no for unstable VitC and antioxidant ingredients (this is also a factor Paula rates products down for so I'm surprised she went with this design herself). I feel this is an oversight from Paula that can be fixed easily by using a pump dispenser in more squared off sturdy glass container. The product was turning after nearly 5 months of use anyway but this kind of tragedy should not happen at all. Given the price and quality of this serum, the packaging is very problematic and too easily broken/spoiled, so I am sincerely sad to be knocking off a lippy. Off to repurchase right now!

12 out of 12 people found this review helpful.

on 11/10/2014 11:15:00 AM

Age: 44-55

Skin: Other, Other, Not Sure

Hair: Other, Other, Other

Eyes: Other

This serum in a dropper bottle has a lightweight consistency. I went through two bottles of this and noticed no improvement in my skin even when using twice a day. When I switched to Dr Loretta's vitamin C serum, my skin brightened within a week.

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