Hyaluronic serums with clinically tested active ingredients
4-fold hyaluronic acid complex for deep, multi-layer treatment & hydration
Choose Your HYA 4 Serum by Skin Concern
Whether you’re dealing with aging signs, breakouts, redness, or pigmentation – there's a HYA 4 Serum formulated just for you.
View ALL HYA 4 Serums
Showing 1–12 of 21 results
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55,00 € – 91,00 € -
50,00 € – 77,00 € -
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23,00 € – 119,00 € -
Customer Reviews
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from 357 reviewsIch habe schon sehr viele Seren probiert, aber von Dr.Vos‘‘ Produkt bin ich begeistert und würde es immer wieder kaufen- jeden Cent wert!
Es wurde mir von meiner Kosmetikerin empfohlen - die Haut wird optimal versorgt und sieht nach wenigen Sekunden glatter und aufgefüllter aus. Wirklich toll!
I have been using this for almost a year. It is awesome. Honestly, the smell is a great way to start my day 😊
Just began using this product. I know in my ♥️ this will be life changing. Thank you Dr. Voss for your work.
This is the best. On my neck. And the delicious smell of my LIA C6. To die for.,😎
I have been using this product. Now...my skin is 10 years younger my body!!
Sehr wirkungsvoll.Spannt einwenig auf der Haut. Ich bin 74 Jahre alt.
Ich hatte starke Rötungen im Gesicht und habe Copymed über zwei Jahre lang konsequent angewendet. Ich habe einen riesigen Effekt gesehen
Ich hatte starke Rötungen im Gesicht und habe Copymed über zwei Jahre lang konsequent angewendet. Ich habe einen riesigen Effekt gesehen
Guten Tag. Ich nehme das Produkt seit ca 2 Jahren auf Empfehlung meiner tollen Kosmetikerin Katja Harmuth. Ich hatte ganz tiefe Lippen Falten. Dank Microneedling und diesem Produkt sind die Falten fast verschwunden. Ich benutze es morgens und abends. Bin 57 Jahre alt .
Lieben Gruß
Ich liebe dieses Body Spray. Habe es einfach immer in meiner Tasche dabei.
Ich liebe diese Gesichtscreme. Vor allem, weil sie schnell einzieht und ich mich direkt danach schminken kann. Ich benutze die Fluidcreme mit Pure Glow - meine Hait liebt es. Danke!
Das Tonic reinigt die Haut perfekt.. Es treten keine Pickel mehr auf.
Sehr gute Creme, die tatsächlich 24 Stunden dir Haut gut pflegt.
Meine Haut strafft sich !
Ich bin sehr begeistert !
Kühlt und erfrischt direkt beim Auftragen. Ich klopfe es ein wenig in die Haut ein, zieht dann schnell ein und hinterlässt keinen Film. Sehr angenehm.
Our Proven Skincare System: DUAL LIFT® Routine
A highly effective HYA 4 Serum is just the beginning. To protect your results and support long-term skin resilience, we recommend pairing it with the LIA C 6 Cream as part of the DUAL LIFT® System:
Step 1
Apply after cleansing on slightly damp skin. It hydrates the dermis and delivers powerful actives deep where they’re most needed.
Step 2
Follow with a LIA C 6 Cream to protect the epidermis. It locks in hydration, strengthens the lipid barrier, and shields against photoaging. This two-step system treats both skin layers individually – far more effectively than “all-in-one” creams.
Targeted Solutions That Work Deep Within Your Skin
HYA 4 Serums – Active Ingredient Delivery for Visible Results
Looking for more than just hydration? Want a solution that targets specific skin concerns like blemishes, redness, or loss of firmness – right where the problem begins, deep in the skin?
Explore the HYA 4 Hyaluronic Serum collection from Dr. E. Voss. These serums combine high-performance active ingredients with advanced 4-tier hyaluronic acid technology. Think of it as a “delivery system” for your skin: Hyaluronic molecules act like a smart taxi, transporting actives precisely into the deeper skin layers – far beyond basic moisture care.
The Science Behind the HYA 4 Technology
How Our Hyaluronic Delivery System Transforms Skin
Each HYA 4 serum is a high-tech formula built on four molecular sizes of hyaluronic acid, carefully designed to reach and benefit every layer of your skin – from surface to deep dermis. The result? Skin that feels plumper, stronger, and more youthful from within.
Why 4 Types of Hyaluronic Acid?
Your skin isn’t one-dimensional. That’s why we use four precisely targeted hyaluronic types – each with a unique role in hydration and skin repair:
Long-chain (high molecular)
Acts as a breathable moisture veil. Locks in hydration and protects against external aggressors.
Macro-hyaluronic acid
Transports the active ingredients and strengthens the skin barrier from within. Calms redness and improves resilience.
Medium-size molecules
Penetrates deeper to create lasting hydration reservoirs. Also works as a carrier for actives.
Low molecular weight
Reaches the dermis, stimulates collagen, smooths wrinkles, and visibly firms the skin over time.
Frequently Asked Questions (FAQ)
What makes our serums special? A powerful combination of two key factors.
- Targeted Actives:
Each serum contains high concentrations of clinically tested ingredients, carefully selected to address a specific skin concern such as wrinkles, blemishes, or redness. We follow a synergistic approach: multiple active ingredients work together in each formula, with each one targeting a different aspect of the overall issue. This allows us to treat complex skin concerns more effectively and more gently at the same time.
Example – acne treatment: We address multiple contributing factors like hormonal imbalance, excess sebum production, impaired cell shedding, microbiome disruption, and inflammation – all in one formula that’s also suitable for sensitive skin. - Smart Delivery:
Our four-level hyaluronic acid technology not only delivers superior hydration but also acts as a “delivery taxi” for the active ingredients – especially thanks to its smallest molecular forms. These penetrate deep into the skin to unleash the full potential of the actives right where they’re needed. That’s the difference between surface-level care and truly effective problem-solving.
Why is the DUAL LIFT® system (serum + cream) so important?
The serum delivers moisture and actives into the dermis. But without sealing the skin with a lipid-rich cream, moisture escapes and the skin barrier weakens.
The LIA C 6 Cream seals in hydration, protects against external damage, and prevents premature aging. Think layered care – not one-size-fits-all.
How do I choose the right HYA 4 Serum?
Choose based on your current skin condition, not your skin type:
- Oily, blemish-prone skin → AKNEX or BIO CLEAR
- Wrinkles & loss of firmness → DEEP LIFT Q10 or EterCell
- Redness, sensitive skin → CAPIMED
- Tired eyes, dark circles → BRIGHT EYES
Are the serums suitable for sensitive skin?
Yes. All HYA 4 Serums are free from emulsifiers, fragrances, dyes, silicones, and parabens. Minimalist formulas, maximum effect – even for hypersensitive skin.
When will I see results?
You’ll notice a smoother, more hydrated feel immediately. For visible improvements (fewer blemishes, less redness, firmer skin), we recommend regular use for:
- 2–4 weeks for clarity and calm
- 2–3 months for wrinkle reduction
Since your skin’s natural hyaluronic levels decline with age, consistent daily use is key to maintaining healthy, plump skin.
