C15 Super Booster

C15 Super Booster

Full Size | 20 ml
A$79.00
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C15 Super Booster
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C15 Super Booster

C15 Super Booster

3.1
Rated 3.1 out of 5 stars
46
  • Age Prevention
  • Brightening
  • Environmental Protection
Our best-selling 15% vitamin C brightens skin, improves the appearance of fine lines & wrinkles & boosts glow in 15 minutes for immediate results–without irritation.
  • 15% vitamin C visibly brightens skin
  • Ferulic acid & ergothioneine boost visible results
  • Gentle formula absorbs quickly for immediate results
  • Use alone or add to your non-SPF moisturiser or serum
A$79.00
Benefits

C15 Super Booster’s improved formula delivers high-potency vitamin C with minimised irritation. New technology targets dullness and uneven tone for a firmer, more radiant complexion with the addition of ergothioneine to boost efficacy for advanced results. Ferulic acid defends against discolouration and boosts 15% vitamin C’s stability.

Diminishes visible signs of aging for brighter, smoother skin with an exclusive blend of 15% stabilized vitamin C (l-ascorbic acid) at a pH range of 3.1–3.5, potent antioxidants ferulic acid, ergothioneine, vitamin E and skin-smoothing peptides. You’ll see younger-looking and more radiant skin with each use.
How To Use

STEP 4: BOOST GLOW

Dispense 2-3 drops into the palm of your hand and then apply to your face. Add a couple more drops if you will also be applying to your neck and chest. During the day, finish with a moisturiser with SPF 15 or greater. Can be applied under the eye area, avoiding the eye itself.
Ingredients

Key Ingredients

  • Water/Aqua/Eau
  • Ascorbic Acid
  • Glycerin
  • Ethoxydiglycol
  • PPG-26-Buteth-26
See All Ingredients
  • Mannitol
  • Tridecapeptide-1
  • Palmitoyl Tripeptide-5
  • Ergothioneine
  • Sodium Hyaluronate
  • Pentylene Glycol
  • PEG-40 Hydrogenated Castor Oil
  • Bisabolol
  • Sodium Gluconate
  • Decylene Glycol
  • Ferulic Acid
  • Tocopherol
  • Polyacrylate Crosspolymer-6
  • Panthenol
  • Sodium Phytate
  • Sodium Hydroxide
  • Citric Acid
  • Phenoxyethanol
  • Oryza Sativa (Rice) Bran Extract

Water/Aqua/Eau, Ascorbic Acid, Glycerin, Ethoxydiglycol, PPG-26-Buteth-26, Mannitol, Tridecapeptide-1, Palmitoyl Tripeptide-5, Ergothioneine, Sodium Hyaluronate, Pentylene Glycol, PEG-40 Hydrogenated Castor Oil, Bisabolol, Sodium Gluconate, Decylene Glycol, Ferulic Acid, Oryza Sativa (Rice) Bran Extract, Tocopherol, Polyacrylate Crosspolymer-6, 1,2-Hexanediol, Panthenol, Sodium Phytate, Sodium Hydroxide, Citric Acid, Phenoxyethanol. il395v3

Paula's Choice is dedicated to maintaining the accuracy of the ingredient lists on this website. However, because ingredients are subject to change, we cannot guarantee that these lists are error-free. For an accurate listing of ingredients in each product, please refer to your product packaging.
Research
  • Molecules, February 2023, pages 1–20
  • Antioxidants, August 2022, pages 1–18
  • Pharmaceuticals, July 2021, pages 1–22
  • American Academy of Dermatology, July 2008, pages 418-425
  • Fitoterapia, September 2010, pages 208–211
  • Skin Research and Technology, December 2007, pages 376–380
  • Journal of Investigative Dermatology, October 2005, pages 826–832

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FAQs

Why did Paula’s Choice reformulate the C15 Super Booster?

Despite the C15 Super Booster being one of our top-selling products globally, there were some improvements requested by consumers like increased gentleness and formula stability, improved texture and packaging improvements. We listened to their feedback and reformulated the C15 Super Booster to address these concerns and make it even better. We believe the new and improved formula will be something both existing and new clients will love!

How is the new C15 Super Booster formula different from the original?

While the original formula was effective, our best-selling vitamin C booster is now even better at revitalising your complexion and elevating your skin care routine. The new formula combines the benefits of pure vitamin C with targeted peptides and ergothioneine, which provide anti-ageing benefits. These peptides help to soften the appearance of fine lines and wrinkles while improving the skin's underlying support for greater resiliency. Overall, the new formula is more stable, gentler and performs even better than the original. Bonus —it smells better too!

Is the effectiveness of the C15 Super Booster reduced if I mix it with other products?

No. The formula was designed to complement the ingredients in our serums and non-SPF moisturisers. We recommend you just don’t mix it into your sunscreen because mixing any non-SPF skin care product with sunscreens can reduce their effectiveness against UV rays.

Is the C15 Super Booster good for blemish-prone skin?

Yes, the skin-loving benefits of vitamin C plus key antioxidants in this booster support healthy skin which in turn may eliminate some of the triggers that drive blemishes. These ingredients can also help fade post-breakout marks.

Is the C15 Super Booster good for rosacea or sensitive skin?

Yes, most people with sensitive skin can use vitamin C safely. The amount of vitamin C (15%) in C15 Super Booster is potent, but the formula is suitable for sensitive skin because of the additional skin-soothing ingredients and extra formulary steps taken to ensure its stability and gentleness. Vitamin C isn’t known to cause skin irritation, but if you notice dryness, redness or stinging, we recommend reducing application frequency, or mixing 2-3 drops into your other serums or non-SPF moisturiser. If you've experienced sensitisation to higher amounts of vitamin C, we recommend you consider our C5 Super Boost Moisturizer which contains 5% vitamin C.

My skin tends to be sensitive to vitamin C, but I still want to use this. Will applying it a few times per week still be beneficial?

Yes. Although once or twice-daily application is recommended, you will absolutely still see benefits from C15 Super Booster if it's applied less often. However, results might take a bit longer to notice due to the less frequent application. As with any skin care product, you need to pay attention to how your skin responds and adjust usage (or products) accordingly.

Are there any products or ingredients the C15 Super Booster cannot be used with?

The only ingredients you shouldn’t use with vitamin C are copper peptides. Copper peptides can oxidise pure vitamin C, making it less effective on skin. When using vitamin C and copper peptides in your routine, we recommend using one in the morning and the other at night to ensure maximum effectiveness. Aside from this exception, you can typically use vitamin C along with other ingredients such as retinol, AHA, BHA, niacinamide and more. See our article to learn more about why vitamin C and niacinamide play well together.

How does the packaging of the C15 Super Booster keep the product stable?

To protect the potency of the formula, we've opted for a UV coated glass container (to shield from light) and an internal restrictor which drastically reduces airflow per use. In rigorous testing, these packaging safeguards proved adequate at preserving the effectiveness of the vitamin C and other key ingredients in this formula for a period of three months once opened.
3.1
Rated 3.1 out of 5 stars
Based on 46 reviews
41%would recommend this product
Total 5 star reviews: 16 Total 4 star reviews: 3 Total 3 star reviews: 10 Total 2 star reviews: 4 Total 1 star reviews: 13
Reviews Summary
Customers say this vitamin C serum brightens skin and helps with pigmentation, though experiences vary significantly. Many report glowing, radiant skin and improved skin tone after consistent use. However, the new formula has caused mixed reactions - some find it less irritating and more effective, whilst others experience increased skin irritation, redness, and burning sensations. Common concerns include rapid oxidation within weeks or months, making the product unusable before finishing the bottle. Multiple users report bottles fizzing up like soft drinks when opened, causing product loss. The thin, runny consistency makes application challenging without a dropper. Some find it leaves a greasy residue or sticky feeling, making it unsuitable under makeup. Long-term users particularly note differences between old and new formulations.
Customers Talked About
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46 reviews
  • bella
    Flag of Australia
    Verified Buyer
    I do not recommend this product
    Pros Lightweight
    Describe Yourself Beauty Conscious
    Rated 1 out of 5 stars
    2 weeks ago
    i would not buy this product again

    i have not been happy with the products, i have stopped using them, they just do not do much for my skin, i'm sorry i really wanted them to work, but they have done nothing for my skin.

    Was this helpful?
    Paula's Choice - Australia
    5 months ago

    Hello! We’re sorry to hear this didn’t work out for your skin. This can occur for various reasons, as everyone’s skin responds differently. We encourage you to reach out to Client Services through the Help Centre or via email custservaustralia@paulaschoice.com for assistance and alternate recommendations if needed. We hope this helps. – PC

  • Except
    Flag of Australia
    Verified Buyer
    I recommend this product
    Pros Softens Skin, Moisturises, Soothes Skin
    Best Uses Daily Use
    Describe Yourself Minimalist
    Rated 5 out of 5 stars
    2 weeks ago
    Repeat customer

    Daily use because I can see the good impact it has on my skin

    Was this helpful?
  • Neyo
    Flag of Australia
    Verified Buyer
    I recommend this product
    Pros Softens Skin, Soothes Skin
    Best Uses Daily Use, Fine Lines/Wrinkles, Uneven Skin Tone
    Describe Yourself Minimalist
    Rated 5 out of 5 stars
    2 weeks ago
    Effective. Skin looks brighter in a week.

    This is very effective. My search for vitamin c serum is over. I noticed difference in skin in a week and so did my husband. He even asked if I'm doing anything different to my face as it looks brighter.

    Was this helpful?
  • T
    Flag of Australia
    Verified Buyer
    Rated 3 out of 5 stars
    2 months ago
    I think it was oxidized when it arrived. Deep orange color

    I really wanna use this product and have been using it daily since it arrived 2 weeks ago. Unfortunately when I first opened the bottle it had an orange color which makes me think it's oxidized. Am wondering how long it'll last if it's already dark orange in color from day one

    Was this helpful?
    Paula's Choice - Australia
    2 weeks ago

    Hello! The C15 batches shipping out in April and May 2026 were a littler darker than normal, but rest assured our team has done added inspections of current batches to ensure they are fully effective and stable to use. We never send out or sell expired products. Feel free to reach out to Client Services for further support and to provide more info, if needed. They can be reached through the Help Centre or via custservaustralia@paulaschoice.com. We hope this helps. - PC

  • JuJu
    Flag of Australia
    I do not recommend this product
    Pros Non-Greasy, Lightweight
    Rated 2 out of 5 stars
    3 months ago
    Product is hard to use

    Product didn't come with the eye dropper and is to runny to pour correct amount, found i wasted alot of product before getting my own dropper

    Was this helpful?
    Paula's Choice - Australia
    3 months ago

    Hello! We're sorry to hear the pipette was missing from your C15 carton. This isn't common at all! Please reach out to Client Services through the Help Centre or via email custservaustralia@paulaschoice.com and our team can assist you. - PC