Hyaluronic Serum: highly concentrated, clearly formulated, effective
Hyaluronic acid is the moisture reservoir for your skin and one of the most important active ingredients for a plump, smooth complexion. You have surely heard of it already. Perhaps you are wondering where hyaluronic acid comes from and whether it is really right for your skin.
At hyapur® Berlin, we have been experts in this active ingredient for over 17 years. Below, you will gain some insights into this fascinating molecule and find answers to questions we hear frequently.
01 What exactly is a hyaluronic serum?
A hyaluronic serum (sometimes also referred to as a hyaluronic acid serum) is a particularly light form of skincare, usually liquid or gel-like in consistency.
Hyaluronic acid is created by dissolving hyaluronic salt (sodium hyaluronate) in water. Unlike a cream, a good facial serum with hyaluronic acid therefore rarely contains oils, emulsifiers, or fillers.
A good serum provides a high dose of active ingredients, absorbs quickly, and feels light on the skin. However, to achieve its best effect, it must be "sealed" with a cream.
02 Effect: What does a hyaluronic serum do for your skin?
The effect of a hyaluronic acid serum is based on a simple property: the molecule can bind many times its own weight in water. In a serum, hyaluronic acid is particularly highly concentrated compared to creams, which is why a good serum has a noticeably more intensive effect than a pure moisturizer. However, a serum generally does not contain nourishing ingredients such as lipids. Therefore, it is important to apply a cream or lotion as a final step after using the hyaluronic serum.
VISIBLE EFFECTS
A hyaluronic serum can provide a plumper skin feel, reduced tightness, visibly smoothed fine lines, and a fresher complexion. These effects are often noticeable from the very first application, with increasing benefits from regular use over 4–6 weeks. The strength and longevity of these effects depend heavily on the formulation and the molecular size of the hyaluronic acid used.
03 High-dose & low-molecular-weight: What to look for in a serum
"High-dose" refers to the proportion of sodium hyaluronate (the hyaluronate salt) in the formula. You can (often) recognize its concentration by its position in the INCI list: the further toward the beginning, the higher the proportion usually is. However, just as important as the dosage are the quality and the molecular size of the hyaluronic acid used:
High molecular weight: Immediately visible effect
Large molecules remain on the surface of the skin, where they form a moisture film and provide an optical smoothing effect. This gives you a lovely immediate result, although it is rather short-lived.
Low molecular weight: deep-acting
Small molecules penetrate the upper layers of the skin, bind moisture there, and support the skin's structure: the foundation of our Pure Hyaluron Serum with Silver.
04 Which skin types is a hyaluronic acid serum suitable for?
Due to its water base, a pure hyaluronic serum is considered non-comedogenic, meaning it does not clog pores. This also makes it suitable for almost every skin type or condition:
- Dry & dehydrated skin
- Sensitive skin
- Mature skin with fine lines and wrinkles
- Blemish-prone and irritation-prone skin
- Combination skin
Especially when using a hyaluronic serum on sensitive skin or in cases of intolerances, it is worth taking a look at the list of ingredients:
The fewer additional emulsifiers, fillers, or fragrances, the more likely the serum is to be well-tolerated.
Our Pure Hyaluronic Intense Serum, for example, contains only pure hyaluronic acid and fine microsilver in addition to its water base; the latter has a mild antibacterial effect and is often appreciated for sensitive or blemish-prone skin.
Hyaluronic Serums
05 The hyapur® hyaluronic serums at a glance
The story of hyapur® Berlin begins in 2008 with the Pure Hyaluronic Intense Serum, a hyaluronic serum that remains unmatched in its purity to this day. As hyaluronic experts, we are represented with it in beauty salons and spas of upscale hotels as well as on cruise ships.



Pure, low-molecular-weight hyaluronic acid and finest microsilver. Only 3 ingredients; hyaluronic acid in its purest form.
The combination of high and low molecular weight hyaluronic acid for immediate and long-term effects.
High-molecular hyaluronic acid and green algae for visibly calmed skin, reduced redness and dark circles.
06 How to apply Hyaluron Serum correctly
To ensure your Hyaluron Serum can achieve its optimal effect, you should follow a few basic steps when applying it:
01 Cleanse face
For example with a mild cleansing milk, so that the serum can be absorbed without obstruction.
02 Toning
Since hyaluronic acid binds large amounts of water, a facial toner is recommended. To do this, spray on the toner and thoroughly remove any soap residue with a cotton pad. Then spray it on again so that the skin is slightly damp.
03 Apply serum
Apply 1-2 drops of the hyaluronic serum to slightly damp skin and gently pat in. Allow to absorb completely for about one minute.
04 Seal with cream
A day or night cream subsequently locks in moisture and supports skin regeneration.
FAQs
07 Frequently Asked Questions about Hyaluronic Serum
Serum or ampoule (hyaluronic concentrate): What is the difference?
A serum is intended for daily use. Ampoules or a hyaluronic acid concentrate are usually more highly concentrated and are primarily suitable for a time-limited intensive treatment, such as for severe dryness.
Is our Pure Hyaluronic Serum "100% Hyaluronic Acid"?
Strictly speaking, the serum consists of water, dissolved hyaluronic salt (sodium hyaluronate), and the finest microsilver. In this sense, it is hyaluronic acid "in its purest form": without parabens, fragrances, silicones, mineral oils, colorants, or other additives.
What is the difference between the hyapur® serum and Amazon or drugstore products like Hyaplus?
Drugstore serums often contain additional ingredients, fragrances, or preservatives. Our Pure Hyaluronic Serum with Silver is deliberately reduced to three ingredients and is produced in Germany under the highest quality standards.
Is the hyaluronic acid serum suitable for sensitive skin?
Yes, the hyapur® Hyaluron Serum is also ideal for sensitive skin. Thanks to its pure formulation with only 3 ingredients and hyaluron obtained biotechnologically from plant-based glucose, it has virtually no allergenic potential, absorbs quickly into the skin, and provides it with intensive moisture.
Is the hyaluronic serum also suitable for blemished skin?
Yes. Hyaluronic acid is non-comedogenic and does not clog pores. Our serum with the finest micro-silver is therefore also valued by customers with skin prone to blemishes.
How often and for how long should I use the serum?
Once or twice daily, continuously. Unlike a treatment course, a hyaluronic acid serum (with low-molecular hyaluronic acid) is designed for long-term, regular use in your skincare routine.
Where can I buy hyaluron serum from hyapur®?
Directly and with the largest selection in the hyapur® online shop. You can also find selected products on Mein Schiff®, in ROBINSON Clubs, spas in upscale hotels, and at select beauty salons.
Can hyaluronic acid dry out the skin?
In certain situations, yes: Hyaluronic acid is a moisture magnet and attracts water. Ideally, you have dampened your skin or it draws moisture from the air. However, if the ambient air is very dry or the skin barrier is already weakened, hyaluronic acid can instead draw moisture up from deeper skin layers, where it can then evaporate. This is easy to avoid: always apply the serum to slightly damp skin and then seal it with a cream that locks in the moisture.
Can I combine hyaluronic acid serum with retinol, vitamin C, niacinamide, or peptides?
Yes. Hyaluronic acid does not cause any active ingredient conflicts and can be easily combined with most other active ingredients. Since retinol and vitamin C have smaller molecular sizes than hyaluronic acid, you should apply these active ingredients first after cleansing. Follow this with the hyaluronic serum and a finishing moisturizer.
Is oral hyaluronic acid the same as a hyaluronic serum?
No. Hyaluronic acid is also available as a dietary supplement in capsule or drinkable ampoule form, which is intended to work on the body from the inside. Our Hyaluronic Serum is developed exclusively for external application on the skin and is not intended for ingestion.
Does the serum leave a sticky residue on the skin?
No. A sticky or heavy skin feel is one of the most common concerns with hyaluronic serums. Our Pure Hyaluronic Intense Serum is intentionally formulated to be lightweight and absorbs completely without leaving a residue. You can apply your day cream or makeup immediately after the one-minute absorption time.
08 Experiences with Hyaluronic Acid
Before deciding on a serum, it is understandable that you want to know how others are getting on with it. Our customers love the purity, efficacy, and texture of our hyaluronic acid serums. If you are unsure which serum is right for your skin, our team is happy to provide personal, free advice via phone or email. We look forward to hearing from you!
Find out more about skincare with hyaluronic acid here

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About hyapur® Berlin

- Since 2009, the brand for premium hyaluronic acid cosmetics
- vegan, biotechnologically produced hyaluronic acid and natural formulations reduced to the essentials
- Quality Made in Germany

- over 1,000 delighted customers
- Spa partner of the Mein Schiff® fleet, Hapag-Lloyd Cruises, selected ROBINSON Clubs, and 5-star hotels




