Hyaluronic Acid Serum for Dry, Dehydrated & Mature Skin | 4D+ Hyaluronic Serum

Is your skin craving hydration that lasts beyond the surface?

Dehydration occurs when moisture cannot penetrate and remain within the skin's deeper layers. Multi-level hyaluronic support helps restore hydration from the surface through the epidermis while strengthening the skin barrier.

4D+ Hyaluronic Serum is an advanced hydration treatment designed to regenerate, soothe, and visibly plump the skin using multiple molecular weights of hyaluronic acid. It helps replenish dry and dehydrated skin while supporting a healthy moisture barrier for long-lasting hydration.

At the core of the formula is a 4D Hyaluronic Complex, combining multiple molecular weights of hyaluronic acid to hydrate, firm, and support natural moisture retention throughout the skin.

Sodium Hyaluronate attracts and binds water to the skin, reducing dryness and helping maintain long-lasting hydration.

Picea Abies (Natural Arctic Tree Extract) helps soothe damaged skin and supports the skin's anti-inflammatory response, making it beneficial for sensitive or compromised complexions.

An Organic Antioxidant Blend including Horsetail Extract, Hibiscus Extract, Pomegranate Extract, Dandelion Extract, and Bilberry Extract help calm, nourish, and protect against environmental stress while supporting skin renewal.

The result:
• Immediate and long-lasting hydration
• Visibly plumper, smoother skin
• Improved barrier function
• Reduced dryness and flaking
• Calmer, more resilient complexion

Ideal for:
• Dehydrated or dry skin
• Sensitive or post-treatment skin
• Fine lines caused by dehydration
• Barrier repair support
• Layering under actives or moisturizers

When hydration penetrates multiple layers, skin appears fuller, calmer, and more luminous.

Use: Apply twice daily after cleansing and toning. If using alpha hydroxy acids, beta hydroxy acids, or retinol, apply 4D+ Hyaluronic Serum first and allow it to absorb before layering additional products. May be used under day or night moisturizer. Ideal for post-treatment use to calm skin and support recovery.

Size: 1 oz.

Key Ingredients

Hyaluronic Acid (HA) Complex:

High Molecular Weight - Hydrates surface and supports skin barrier

Mid Molecular Weight - Protects natural moisturization, calms, and hydrates skin

Low Molecular Weight - Penetrates deeply to stimulate natural HA production

Sodium Hyaluronate - Attracts and retains moisture, reduces flaking, and nourishes deeply

Natural Arctic Tree Extract (Picea Abies) - Clinically proven to soothe damaged skin and reduce inflammation

Organic Antioxidant Blend - Horsetail, hibiscus, dandelion, pomegranate and bilberry – rich in antioxidants – calm, nourish, and protect the skin while supporting a more even, radiant tone

Other Ingredients

Aqua, Glycerin, Sodium Hyaluronate, Equisetum Arvense Leaf Extract*, Hibiscus Sabdariffa Flower Extract*, Punica Granatum Fruit Extract*, Taraxacum Officinale Extract*, Vaccinium Myrtillus Fruit/Leaf Extract*, Picea Abies Extract, Hydroxyacetophenone, 1,2-Hexanediol

Key Active Ingredients:
Hyaluronic Acid · Antioxidants

Frequently Asked Questions

What is the difference between dry skin and dehydrated skin?

This is one of the most common questions in skincare — and the distinction matters, because the solution is different for each.

Dry skin is a skin type. It refers to skin that produces less sebum (natural oil) than average, which means it has a harder time retaining moisture and maintaining a healthy barrier. Dry skin tends to feel tight, look dull, and may flake or feel rough. It is largely genetic and tends to be a consistent, long-term characteristic of your complexion.

Dehydrated skin is a skin condition — not a type — meaning it can affect anyone, including those with oily or combination skin. Dehydration occurs when the skin lacks sufficient water content, often due to environmental factors (cold weather, air conditioning, wind), lifestyle habits (caffeine, alcohol, inadequate water intake), over-exfoliation, or barrier disruption. Signs include a dull, tired appearance, fine lines that seem more pronounced, and skin that feels tight even after moisturizing.

The key difference: dry skin lacks oil; dehydrated skin lacks water.

The 4D+ Hyaluronic Serum is formulated to address dehydration at multiple skin depths using four molecular weights of hyaluronic acid — making it beneficial for both dry skin types and anyone experiencing temporary or chronic dehydration. It works beautifully layered under a moisturizer to lock in the hydration it delivers.