A multi-level brightening serum powered by 10% Vitamin C Phosphate, Kakadu Plum Extract, Niacinamide, and Fermented Marine Extracts to fade dark spots and even skin tone. Enriched with Hyaluronic Acid and 5% Urea, it delivers deep hydration, restoring skin’s luminous radiance.
Our 25% C-Bright Complex
- 10% Vitamin C Phosphate + 2% Kakadu Plum Extract deliver a dual brightening effect—helping to even tone, reduce pigmentation, and enhance clarity while shielding skin from oxidative stress.
- 2% Niacinamide + 2% Fermented Marine Extract Complex work together to inhibit excess melanin production and block its transfer to skin cells, revealing a brighter, more even complexion.
- 5% Urea + 2% Hyaluronic Acid Complex restore moisture balance, softening and deeply hydrating for a smoother, supple feel.
- 2% Salt Bush Extract rich in Protocatechuic Acid (PCA), delivers potent antioxidant defence against oxidative stress while soothing inflammation. This powerful botanical supports a brighter, more even tone and promotes healthier, resilient-looking skin.
- Dimethyl Isosorbide acts as an advanced penetration enhancer, gently partitioning through skin layers to improve the delivery of active ingredients.
Aroma: Sweet Citrus
Suited To: All Skin Types, including Sensitive, Oily, and Mature Skin Types.
pH Range: 6.5 - 7.5
Ingredients List
Ingredients List
Our formulation includes the following key ingredients:
water/aqua, aloe barbadensis (aloe vera) leaf juice, sodium ascorbyl phosphate, dimethyl isosorbide, isostearyl isostearate, urea, propanediol, caprylic/capric triglyceride, atriplex nummalaria (salt bush) extract, c15-19 alkane, niacinamide, terminalia ferdinandiana fruit (kakadu plum) extract, butylene glycol, hydrolyzed yeast extract, sodium hyaluronate, mauritia flexuosa (buriti) fruit oil, lauryl glucoside, polyglyceryl-6 laurate, phenoxyethanol, ethylhexylglycerin, hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, myristyl glucoside, microcrystalline cellulose, disodium edta, sphingomonas ferment extract, tocopherol, citrus sinensis (sweet orange) oil, helianthus annuus (sunflower) seed oil, cellulose gum, glycolipids, citric acid.
* Aroma compounds that are part of the essential oils used in this formula.
- This product contains ingredients derived from nuts.
Radiant & Even Complexion
Formulated with a unique fermented Marine Extract that works in synergy to effectively reduce dark spots and improves skin tone. By targeting multiple phases of the pigmentation process, it minimizes melanin production, reduces hyperpigmentation, and enhances skin radiance.
Shield Against Skin Damage
Combining the natural Vitamin C from Kakadu Plum Extract with Vitamin C Phosphate creates a powerful mix that revitalizes the skin, making it even, bright, and youthful. This is why it’s considered one of the best vitamin C serums for achieving a glowing complexion.
Pairs Well With
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Water Bomb Face Cream
Your Skin Deserves Exceptional Ingredients
Kakadu Plum Extract
One of the richest natural sources of vitamin C, which has skin brightening properties. Vitamin C helps to inhibit the production of melanin, promoting a more even complexion and reducing the appearance of dark spots.
Learn More About Kakadu Plum
Fermented Marine Extract
Derived through advanced biotechnology from a Tenerife marine microorganism. A potent marine ingredient that brightens skin complexion and diminishes dark spots, whilst promoting overall skin evenness.
Learn More About Marine Extract
Salt Bush Extract
Powerhouse for calming irritation, reducing acne, and combating inflammation. Rich in antioxidants Sea Fennel impart a luminous, youthful glow to the skin.
Learn More About Salt Bush
Vitamin C Phosphate 10%
A powerful Vitamin C derivative that enhances skin tone, diminishes blemishes and boosts collagen for a radiant complexion.
Hyaluronic Acid
Instantly hydrates, plumps, and revitalises your skin, diminishing fine lines and wrinkles for a youthful, revitalised complexion.
Aloe Vera
Aloe Vera moisturisers, purifies, repairs, soothes, and combats aging, thanks to its rich vitamins, minerals, and polysaccharides.
How to Use
Apply a small amount of product to the finger tips and evenly massage the product over your skin avoiding the eye area.
When To Apply
For most skin types you can daily. Otherwise every other day for sensitive skin types.
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Cleanse
Step 1
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Exfoliate
Step 2
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Toner
Step 3
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Serums
Step 4
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Hydrate
Step 5
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Face Oil
Step 6
Features
We are proud and grateful to have our brand featured in some of Australia's most beloved editorials.
Featured In
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FAQ
Learn More About Our Amazing Serum
What is Vitamin C Phosphate?
What is Vitamin C Phosphate?
Sodium Ascorbyl Phosphate is a stable form of Vitamin C that is water-soluble. Sodium Ascorbyl Phosphate is a stable form of Vitamin C that dissolves in water. It is preferred for its stability and
mildness over pure Ascorbic Acid, often found in skincare products.
The Science Behind Vitamin C Phosphate
It is a derivative that converts to Ascorbic Acid, the active form of Vitamin C when it comes into contact with the skin. This process helps Vitamin C work as an antioxidant without stabilit problems. Vitamin C is effective but unstable, and easily oxidized by light, air, or heat, making it less effective.
By using Vitamin C Phosphate, we ensure that our formula remains stable throughout its shelf life, delivering consistent results without degradation. This stability also allows for more flexible storage conditions, making it easier for customers to maintain the
serum's potency.
Why It’s Gentler on the Skin
Vitamin C Phosphate was chosen for its gentleness. Pure Vitamin C can irritate sensitive skin due to its acidity. However, it can be used by all skin types, including sensitive skin.
It gradually turns into Ascorbic Acid on the skin. This provides benefits such as brightening, collagen production, and antioxidant protection. It also has a lower risk of irritation.
What are the Vitamin C Serum benefits?
What are the Vitamin C Serum benefits?
A strong addition to any skincare routine, offering various benefits that help achieve a glowing, youthful look. Vitamin C is well-known for enhancing the skin, and when it's in a high-quality serum, it can provide impressive results. Here’s what you can expect from using the best vitamin c serum in your daily routine.
Brightens and Evens Complexion
One of the main benefits is its ability to brighten your complexion and even out skin texture and tone. Vitamin C is a powerful antioxidant that helps reduce the production of melanin, which causes dark spots and hyperpigmentation. Regular use can help lessen these spots, giving you a more even and radiant complexion. It’s especially useful for dealing with sun spots, acne marks, or age spots.
Boosts Collagen Production
Collagen is the protein that keeps your skin firm and youthful. As you age, collagen production naturally decreases, leading to sagging skin and wrinkles. This best vitamin c serum australia helps stimulate collagen production, promoting firmer and more resilient skin. Over time, it can reduce the appearance of fine lines and wrinkles, making your skin look more youthful.
Fights Free Radical Damage
Free radicals are unstable molecules that can cause skin damage and speed up aging. These come from environmental factors like UV rays, pollution, and toxins. Vitamin C acts as a shield, neutralizing these free radicals and protecting your skin which helps to prevent damage and keeps your skin healthy and vibrant.
Reduces Inflammation and Redness
Inflammation and redness can be caused by acne, rosacea, or other irritants. The anti-inflammatory properties of Vitamin C help soothe and calm the skin, reducing these issues. This serum is particularly good for sensitive or reactive skin, helping to balance and even out your complexion.
Enhances Hydration and Moisture Retention
While Vitamin C is mainly known for its brightening and anti-aging effects, it also boosts skin hydration. The formulation includes hydration actives, which locks in moisture, ensuring your skin stays hydrated all day. This leads to a plumper, more supple complexion, which is great for dry or dehydrated skin.
Improves Overall Skin Texture
Over time, using our Vitamin C Serum regularly can improve your skin's texture. The serum promotes cellular turnover, reducing roughness, uneven patches, and large pores. The result is smoother, softer skin that feels and looks better.
Can it help brighten and even out my complexion?
Can it help brighten and even out my complexion?
Yes, it can noticeably brighten your skin tone. This serum combines the power of 5% Vitamin C Phosphate, 5% Kakadu Plum Extract, and 2% Fermented Marine Extract to deliver impressive results.
How It Works
Vitamin C Phosphate is a stable and effective form of Vitamin C that plays a key role in reducing melanin production. Melanin is the pigment responsible for pigmentation and uneven skin tone. By decreasing melanin levels, our serum helps lighten existing hyperpigmentation and prevent new spots from forming, leading to a more even and luminous complexion.
Kakadu Plum Extract, one of the richest natural sources of Vitamin C, boosts the brightening effects. This powerful ingredient helps fade discoloration and restore the skin's natural radiance, giving you a brighter and more youthful appearance.
Fermented Marine Extract enhances the overall effectiveness of this serum. It is rich in nutrients that help rejuvenate and illuminate the skin. This extract works together with the other ingredients to improve skin clarity and promote a more radiant complexion.
Incorporating this serum into your daily skincare routine can effectively brighten your skin tone. With its powerful combination of ingredients, it is a go-to solution for achieving a more even, radiant, and glowing complexion.
Who should use Vitamin C Serum for Face?
Who should use Vitamin C Serum for Face?
Everyone should think about adding a Vitamin C Serum into to their morning skincare routine. A powerful source of antioxidants help protect and enhance the skin, making it an essential part of keeping your complexion healthy and youthful, no matter your age or skin type.
One of the key benefits is its ability to guard against free radicals—unstable molecules caused by factors like UV rays, pollution, and toxins. These molecules can damage skin cells, leading to early signs of aging, dullness, and uneven skin tone. By neutralizing these harmful elements, helps prevent aging and keeps your skin looking fresh.
Using this type of product every morning ensures your skin stays protected throughout the day. It’s ideal for anyone looking to reduce pigmentation, prevent aging, and maintain a vibrant, even complexion. Whether your skin is dry, oily, combination, or sensitive, such a product can be a versatile and powerful addition to your daily routine.
How often should I use it?
How often should I use it?
For the best results, apply the serum every morning. The antioxidant properties of vitamin C are especially effective during the day because they protect your skin from free radicals—unstable molecules generated by UV rays, pollution, and other factors that can cause skin damage and speed up aging. By using the serum in the morning, you're giving your skin an extra layer of defense against these harmful elements.
Application Tips:
After cleansing your face, apply a few drops of the serum and gently massage it into your skin until fully absorbed. Follow up with a moisturizer to lock in the benefits, and always apply sunscreen to protect your skin from UV damage.
Incorporating this serum into your daily routine will help maintain a brighter, more even complexion while protecting your skin from daily environmental stressors.
How long does it take to see results?
How long does it take to see results?
Short-Term Effects (1-2 Weeks):
In the first one to two weeks of using our Vitamin C consistently, you might notice your skin feels more hydrated and looks more radiant. The hydration actives in the serum helps your skin retain moisture, making it feel plumper and more supple. You may also start to see the brightening effects of Kakadu Plum Extract, which can give your skin a healthier, more luminous appearance.
Visible Changes (4-6 Weeks):
After about four to six weeks, you should begin to see more noticeable improvements in your skin's texture and tone. The Vitamin C Phosphate in the serum helps reduce melanin production, which lightens pigmentation and evens out your complexion. During this time, you might also see a reduction in expression lines and wrinkles, as the serum supports collagen production and protects your skin from oxidative stress.
Long-Term Results (8-12 Weeks and Beyond):
For the best results, it's important to use the serum consistently over a longer period. After eight to twelve weeks, you can expect to see significant improvements in hyperpigmentation, fine lines, and overall skin texture. The combination of Vitamin C Phosphate, Kakadu Plum Extract, and Fermented Marine Extract works together to give you a brighter, smoother, and more youthful complexion.
While some benefits can be noticed within the first few weeks, full results usually take 8 to 12 weeks of regular use. Patience and consistency are key to achieving the best results for your skin.
Is it suitable for Sensitive Skin, does it cause any irritation?
Is it suitable for Sensitive Skin, does it cause any irritation?
When trying a new Vitamin C products, it’s normal to worry about potential irritation, especially if you have sensitive skin. Fortunately, our serum is specifically designed with sensitive skin in mind. It uses Vitamin C Phosphate, a gentle form of Vitamin C, which greatly reduces the risk of irritation.
A Gentle Formulation
Vitamin C Phosphate is known for being both stable and gentle. Unlike pure Vitamin C, which can sometimes cause irritation, Vitamin C Phosphate is much less likely to cause such reactions. This makes it a great option for people with sensitive skin or those who are new to using Vitamin C in their skincare routine.
This serum is also formulated with other skin-friendly ingredients like 5% Kakadu Plum Extract and 2% Fermented Marine Extract. These ingredients not only boost the serum’s brightening and anti-aging effects but also work together to soothe and nourish the skin, making it an excellent choice for those looking to improve their skin’s appearance without risking irritation.
Customer Reviews
Overall rating: 4.8 / 5 from 126 reviews.
Awesome product. My skin feels and looks amazing. Highly recommend
This is my second purchase of Halo and it sure won’t be my last! Love this product ❤️
I have used a lot of different Vit C products and find this is excellent quality and doesn’t pill my makeup. Not sticky , light and absorbed quickly. Highly recommend.
Leitin’s vitamin c is the best. I’ve seen a huge improvement to my skin since using Leitin’s products.
I’ve had to share with Hubby. He has is own little section now, I have no more back ups!!!
Nice vitamin C serum. It’s hydrating without being sticky and layers well under moisturiser and sunscreen. My skin definitely looks a bit more radiant.
Nice vitamin C serum. It’s hydrating without being sticky and layers well under moisturiser and sunscreen. My skin definitely looks a bit more radiant.
This has became a daily morning ritual. I love it
I have sensitive skin and many Vitamin C are simply too strong, however this is just perfect! It glides on, smells divine and there is absolutely no irritation. I love it!
I believe this is already my third jar of your beautiful eye cream and I couldn’t be happier! I truly love it. Your products have completely transformed my skincare routine. I’m so glad I discovered you on TikTok. My skin looks so much healthier now, and I really appreciate helpful videos you share on how to apply each product.
I absolutely love this Vitamin C serum! instantly brightens my skin, gives a healthy glow, and layers perfectly under other products without feeling sticky. I was so impressed that I bought a second bottle because it’s just that good. Highly recommend to anyone looking for an effective Vitamin C serum
At 54 years this is the first vitamin c serum that hasn't broken me out. I also have sensitive skin and it hasn't caused any irritation. Highly recommend, my skin is brighter and glowing.
I’ve tried many different Vitamin C serums in the past, but this one is by far my favourite. It instantly brightens the skin and gives a beautiful, healthy glow. The texture is perfect not sticky at all and it layers easily with other serums before applying moisturizer. I also love the light citrus scent, which makes it feel so refreshing in the morning. It absorbs quickly and leaves my skin feeling smooth and radiant. Highly recommended if you’re looking for a glow-boosting, easy-to-use Vitamin C serum. I’ll definitely be repurchasing!
This is my second bottle of this and it is making such a difference in my skin. It has brightened and given me such a beautiful glow, I can no longer be without this product. The formula is so nice too. I have found most Vitamin C serums to be either oily or gritty and this one is neither. It is such a lovely hydrating texture that sinks straight into the skin and is so pleasant to use. It also sits beautifully under makeup.
Such a beautiful product! So hydrating and glowy and feels luxurious on the skin. My skin is much brighter throughout the day and such a good price point.
Absolutely loving my Halo Vitamin C. As someone who has very reactive skin & rosacea I was very hesitant, I have experienced some horrible issues with other vitamin C serums. Thankfully I had absolutely no issues with Halo. It feels beautiful on my skin & absorbs well. I can see a difference in my skin already & will definitely be repurchasing.
If buying my fourth bottle doesn’t say something I don’t know what will! The best Vitamin C I have ever tried. I highly recommend it, I have mature age skin and this vitamin c is also hydrating and performs great under make up.
I was incredibly impressed by the beautiful packaging and attention to detail. I’ve been using the Vitamin C for about a week now and I can definitely see a difference in the quality of the product as opposed to my previous, supermarket vitamin c. I’m excited to see how it goes over the next few weeks.
Not a nice texture at all, very sticky. Got this because someone raved about it on Tik Tok, not for me leaves a very sticky residue. Reverting back to my old trusted brand.
My skin is flawless love this product I get so much compliments
Leitins products are elite - I cannot choose a favourite as they all work effectively together improving skin health- my confidence has significantly increased using these products - will repurchase time and time again!!!
Not a fan of the texture at all. Medik8 much much better.
Love this product my skin is glowing every morning!
The only vitamin c that my skin hasn't reacted to. It's gentle but works! My skin looks glowy and bright
Over year of repurchasing this Vit C . This is a staple in my skincare routine, it’s effective without causing irritation like many other Vit C’s on the market. It absorbs well and doesn’t leave a sticky feeling, I love this serum and will always reorder 🧡
I couldn’t recommend this vitamin C higher! The quality is amazing.
This is a really nice serum, it smells good and doesn’t leave my skin sticky. Works beautifully on menopausal skin, is non irritating and brightening. Highly recommend for daily use
I'm on my second bottle so perhaps a good time to share that the benefits only increase over time and, luckily no issues whatsoever with breakout or sensitivity. It has now become a staple in my morning routine.
Gorgeous products and now a repeat purchase in my rotation.
Feels like heaven on my skin
It absorbs beautifully and gives my skin a healthy glow. Definitely one of my favourite products in the Letin range!
I love how luxurious this feels. I’ve been using vitamin c for sometime and it’s a non-negotiable for my morning routine but after following Leitin for a long time I thought it was high time I tried his products. Can’t wait to try more 😊
I love this Vitamin C, it is easy to apply and feels so lovely on the skin.
Its the first time Iv tried the Leitin Vitamin C serum, and I absolutely love it! It's light weight, and absorbs beautifully into my skin. I love the way it gives me a real glow, and leaves my face soft and smooth. I'll definitely be re purchasing!
The first 10% vit C i have used without a reaction. This serum absorbs quickly and leaves my skin glowing
This has become my holy grail of my skin care routine, my skin has seen such an improvement, onto my second bottle! Stands above any high end Vit C I have used!
Switched over to this from the timeless 20% as I was looking for a more stable Vit C. I have to say, I’m loving the glow this gives. I always will give a product 2-3 months to work but so far, I love it. My skin tolerates high % of L-ascorbic acid but coming into winter where my skin can dry out easily, I think this one is going to be amazing. The hydration it offers is so nice. Definitely keen to see how this goes up against my previous Vit c
Honestly I’ve never loved vitamin c it always felt a bit burny around my eyes and hesitantly got Leitins to try and I love it no burning and my skin looks lovely and glowy after applying.
Absolutely love it, if i could afford it, I would buy the full anti aging kit, but even with the mothers day discount, it is still alot
My skin is so much brighter. Again another member of this skincare range that’s made a noticeable difference to my skin. Will certainly buy again😀