VC15 Serum. 30 ml.

Name: VC15 Serum. 30 ml.
Brand: Endor Technologies
SKU: ENDOR-SERVC-30
Price: 78.00 EUR
Availability: InStock

A serum designed to address two of the most common concerns when looking in the mirror:uneven skin tone and photoaging.

Pure vitamin C oxidizes easily, turns orange, and is typically formulated at a very acidic pH. This makes it harder to combine with other active ingredients and less tolerable for daily use.

In VC15 Serum, all vitamin C is stabilized. That is why the pH is adjusted to ~5.5, which is compatible with the skin and frequent use. This allows us to incorporate 2% tranexamic acid, the active ingredient of choice for reducing spots and marks.

15% stable vitamin C: brightening and antioxidant effects to protect your skin from photoaging.
2% tranexamic acid: evens out skin tone and improves dark spots and blemishes.

Unlike acid serums, which have usage restrictions, when you can use this product every day, the benefits build up over time: week by week, your skin looks more even and youthful.

30 ml.

€78.00 €78.00

Pay in three months with no interest using Klarna.

Ingredients

A minimalist, fragrance-free formula designed to preserve as much vitamin C as possible.

3-O-Ethyl Ascorbic Acid: 10%. A stable, fast-acting form of vitamin C for immediate results.
Ascorbyl Glucoside: 5%. A stable form of vitamin C with gradual release for better skin compatibility.
Tranexamic Acid: 2%. An active ingredient that helps reduce dark spots and blemishes.
Pentylene glycol + propanediol: 5%. Moisturizers that soften the skin's stratum corneum to promote the absorption of active ingredients.

INCI: Water, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Pentylene Glycol, Tranexamic Acid, 1,3-Propanediol, Glycereth-26, Phenoxyethanol, Hydroxyethylcellulose, Ethylhexylglycerin, Sodium Phytate

"The best vitamin C serum I've ever tried"

Dr. Paz Cerdá.

"A new gem from Endor."

Dr. Blas García.

What does it do?

We use 15% vitamin C that is 100% stabilized so it doesn't lose its properties. When combined with tranexamic acid, you'll experience the following effects:

Protects the skin from the leading cause of aging: oxidative stress caused by UV radiation. Rapidly improves radiance.
Gradual lightening of brown marks (post-acne or post-irritation). Visible improvement in 4–8 weeks.
In melasma, improvements are slower: reduced contrast and size of the patches, and a more even skin tone.
Gradual softening of the color and edges of sunspots.

How to apply it.

Due to its high concentration of vitamin C, the serum should be used only once a day.

Apply VC15 Serum to clean, dry skin, preferably as part of your daytime routine. Wait a few minutes for the serum to absorb before applying your moisturizer.

It's best to use it during the day to protect your skin from photoaging. For everyday use, SPF 30 is sufficient. If you're going to be spending more time outdoors, SPF 50 is better.

Photo-aging Treatment

€146.00 €146.00

(4.5)

Photoaging is caused by the oxidation of DNA and proteins by reactive oxygen species. Vitamin C neutralizes these species before they cause damage.

However, it is sunscreen that prevents them from forming, because it is ultraviolet radiation that causes them.

When used together as part of your morning routine, they provide a comprehensive treatment against photoaging, giving your skin a radiant glow and a long-lasting, even tone.

Photoaging

When the skin is exposed to UVA radiation, unstable molecules called reactive oxygen species or free radicals are generated. These molecules damage key components of the skin , such as cell membrane lipids, structural proteins like collagen, and DNA.

Vitamin C breaks this chain of oxidation by neutralizing free radicals, thereby protecting the skin from photoaging.

Image: A cell undergoing progressive damage due to the action of reactive oxygen species (free radicals).

Frequently Asked Questions About VC15

How much do I have to use?

The serum goes a long way; just 2–3 drops are enough to cover your face and neck.

Where does it fit into my routine? How do I use it?

First, cleanse, then apply the serum, and finally the SPF 50 moisturizer. After applying the serum, wait a few minutes before applying the sunscreen, until you feel your skin become soft. This means that the rheological network has formed.

Does it replace the previous Endor Serum?

No. The new collection will feature two serums: this vitamin C serum, designed to protect against photoaging and even out skin tone, and a second serum, which is an updated version of the existing one and will continue to serve as a firming treatment for the face and neck.

How do I use it with creams?

Part of the magic of VC15 is that we’ve formulated it to have a pH of 5.5—the same as the skin’s natural pH. This makes it suitable for all skin types, and because it’s so gentle, it’s perfect for use with any treatment cream, sunscreen, or retinoid.

How many times a day should I use it?

Once a day, ideally in the morning to protect you from photoaging.

Is it compatible with retinoids?

It is highly compatible with retinoids because the serum does not have an extremely acidic pH.

You can use vitamin C in the morning and a retinoid at night (the simplest routine).

No visible results

This serum is one of the few Endor products that hasn't shown any improvement in my skin, especially in terms of pigmentation (no difference in my dark spots, even though I always use sunscreen). Also, shortly after I started using it, it turned orange, so I stopped trusting it because it looked like it had oxidized.

Hello Joana,

Thank you for contacting us.

First of all, thank you very much for sharing your experience with our VC15 Serum. We're sorry you didn't get the results you were hoping for, especially in terms of reducing dark spots.

Our VC15 Serum is formulated with 15% vitamin C and 2% tranexamic acid, two ingredients that help improve skin radiance, even out skin tone, and gradually reduce the appearance of dark spots.

However, it is important to keep in mind that not all spots respond the same way to cosmetic treatments. Results may vary depending on the type of pigmentation, its depth, how long it has been present, and how consistently the treatment is applied.

We'd like to know how long you've been using the serum and how many times a day you applied it. This information would help us better evaluate your experience.

Regarding the color change you mentioned, we want to reassure you that vitamin C can naturally have a yellowish or orange tint, which may become more pronounced over time. This does not necessarily mean that the product has oxidized or lost its effectiveness.

If you tell us how long you've been using it, how you applied it, and what type of spots you want to treat, we'll be able to better guide you and determine whether VC15 Serum is the best treatment for your needs.

We hope we have helped you and wish you a happy day.

Rusted

I bought the serum as part of the Mother's Day promotion, but since I was away on vacation when it arrived, I haven't been able to use it until now. This morning, when I applied it for the first time, the color was completely orange (not clear as mentioned in the reviews), something that has never happened to me with other vitamin C serums. Obviously, that dark orange color indicates that the vitamin C has oxidized and, as dermatologists explain, has lost its properties. I would like to request a replacement with a product in good condition or a refund.

Hi Lourdes, our vitamin C serum is one of the most stable—if not the most stable—due to its formulation and packaging. But no matter how stable it is, it’s not inert. If even 1% of the vitamin C oxidizes, it takes on the color you mentioned. In the list of clinics, you’ll find several of the country’s leading dermatologists. You can ask them about the effectiveness of this serum. If you’d like to request an exchange or a refund, this isn’t the right place to do so—please contact our customer service team, and we’ll process your request within 24 hours. Best regards.

Another great product!

I've been a huge fan of all your products for a long time, and this new vitamin C serum certainly doesn't disappoint. It's amazing how it improves the skin! I just bought my second bottle today.
That said, I agree with another user that it wouldn't hurt to improve the dispenser.

Thank you!

It works

I've been using this serum for several months now, and my complexion has evened out. It also spreads easily without leaving my skin feeling sticky. Congratulations on this new formula!

Fantastic

I bought this serum in April—exactly three months ago—and I can already say with confidence that it works wonders. I’ve always taken good care of my skin, but since entering menopause (I’m 49), I’ve noticed my skin has become more uneven in tone and texture. It also seemed like the marks left by pimples took longer to fade or disappear. This serum has helped me a lot—my skin looks more radiant, even-toned, and smooth. It’s like a shot of vitality. I’m using it along with the firming gel cream, and I’m thrilled with the results.

Excellent

My name is Alícia, I’m 60 years old, and I have very fair skin covered in age spots.
I’ve been using the VC15 serum daily for a while now—ever since it came out in late March—and I have to say that no other cosmetic product has had such a positive effect on me so quickly. I’m a huge fan! I took photos of myself starting on the very first day, and the appearance of my skin is completely different from what it used to be. I should mention that I always, always follow up by applying the anti-aging sunscreen with SPF 50.
Later on, I bought the cleansing milk and toner, and given the results—plus the Mother’s Day sale, which was delayed due to the launch of some new products—I took the opportunity to get the Proteomic Serum and the anti-aging gel cream.
The products aren’t expensive, especially when compared to top-tier brands like La Prairie, etc., where any serum or cream costs twice as much or more.
Oh! This review is genuine, and the three orders I’ve placed since March were paid for at the time of purchase. No sponsorships whatsoever. Just so you know!

Delighted

I'm really happy with this serum—I see changes in my skin every day. I can't say enough good things about it. I love it—I don't think there's a better serum out there.

Hello Mercè,

We're so glad to hear that you're so happy with our serum and that you're noticing positive changes in your skin. Thank you for choosing us.

Thank you so much for sharing your experience.

We're so glad to hear that you liked the treatment and that you've noticed an improvement in your skin. Messages like yours mean a lot to us, because they help us keep moving forward, researching, and developing treatments that are increasingly effective.

We also believe that an honest review like yours can be very helpful to others who are trying to decide which treatment to choose or who have questions before trying it.

That’s why we wanted to ask if you’d be willing to give us permission to share your review on our social media or in any of our communications.

Thank you very much again for your trust. We look forward to hearing from you.

We hope we have helped you and wish you a happy day.

Excellent!!

I was so looking forward to receiving it. All the products are excellent.

Thank you for your response

Your response has put my mind at ease, and I’m hoping to see some improvement soon. I took photos on the first day I started using the serum, and every now and then I take new ones to compare. So far, there haven’t been any changes, but I’m hoping there will be. It’s encouraging to read reviews where people say their spots have faded—or even disappeared!

Not all skin types respond the same way, or at the same pace—whether quickly or slowly—so I’m giving it time; I’m still on my first bottle, so we’ll see if there are any improvements by the time I finish it, and if not, I’ll try another one, and with two bottles, I’m sure there will be results, right…? But I hope it happens sooner, hehehe…

I've also started using the eye cream (I even took some photos to see how it works), and as I finish up my old products, I'll start buying the new ones. We'll see how it goes—I'll let you know.

If you could improve the dispensers… 🙏

VC15 Serum. 30 ml.

VC15 Serum. 30 ml.

"The best vitamin C serum I've ever tried"

"A new gem from Endor."

Photo-aging Treatment

Frequently Asked Questions About VC15

Customer Reviews