Neocutis Guide: Bio Serum Firm vs. Bio Cream Firm vs. Bio Gel Firm (and Which Neocutis Product to Buy First)

November 12, 2026

Last reviewed November 12, 2026 · 8-minute read

The short answer: Start with Neocutis Bio Serum Firm if you want the most concentrated growth factor and peptide step, and pair it with the moisturizer that matches your skin: Bio Gel Firm for oily or acne-prone skin, Bio Cream Firm for normal to dry skin, and Bio Cream Firm Riche for very dry or mature skin. Add Lumière Firm for the eye area.

Neocutis is one of those brands you tend to discover in a dermatologist's office rather than on a billboard. Born from wound-healing research in Switzerland, it has spent two decades building a loyal following among people who want firmer, smoother-looking skin without the irritation that can come with stronger actives. Its signature: growth factors paired with proprietary peptides.

The catch is that the lineup looks almost identical on a shelf, all slim turquoise tubes with "Firm" on the label. So we lined up the Neocutis range we carry at DermStreet, compared the ingredient lists side by side, and mapped out exactly who each product is for.

What is Neocutis?

Neocutis was founded in 2003 as a spin-off from the University of Lausanne in Switzerland. Its technology grew out of skin cell research for burn and wound healing; the brand's founding observation was that skin repaired with these principles looked healthier and younger, so the team applied the same thinking to aging skin. Today Neocutis is part of Merz Aesthetics and is sold almost entirely through dermatologists, medspas and physician-grade retailers.

✔ Growth factors to support the look of firmness and smoothness
✔ Proprietary peptides that support collagen, elastin and hyaluronic acid
✔ Gentle formulas suited to sensitive and mature skin types
✔ Textures for every skin type, from gel to rich cream

How do Neocutis growth factors and peptides work?

Growth factors are signaling proteins skin uses to coordinate renewal; on ingredient lists Neocutis's growth factor complex appears as cutaneous lysate (the brand historically called its technology PSP, or processed skin cell proteins). Alongside it, the Firm formulas use two peptides, tetrapeptide-21 and palmitoyl tripeptide-1, which are designed to support the skin's own collagen and elastin for a firmer, more elastic look. Many formulas also add capryloyl carnosine, an antioxidant.

For a broader explainer on this category, read Growth Factor Serums: What They Do and Whether They're Worth It and What Do Peptides Do for Skin?

Is Neocutis backed by science?

Neocutis cites its own data on file for fast visible results: improvements in fine lines, texture, brightness, firmness and hydration in as soon as six days for Bio Serum Firm, and results in as little as 14 days for Bio Cream Firm and Lumière Firm. Independent analysts note the brand has a more clinical track record than most growth factor lines, though independent peer-reviewed studies of individual consumer products remain limited. In other words: credible science behind the approach, brand-run data behind the specific claims.

Bio Serum Firm vs. Bio Cream Firm vs. Bio Cream Firm Riche vs. Bio Gel Firm

Product	Texture	Standout extras	Best for
Bio Serum Firm	Lightweight, fast-absorbing serum	Vitamin C derivative, hyaluronic acid, squalane, three peptides	All skin types; the concentrated treatment step
Bio Cream Firm	Rich yet lightweight cream	Niacinamide, ceramides, argan and borage oils	Normal, dry and mature skin
Bio Cream Firm Riche	Rich, creamy	Adds petrolatum and wild yam to the ceramide base	Very dry, mature or winter-stressed skin
Bio Gel Firm	Weightless hydrogel	Hyaluronic acid, carrageenan	Oily, combination and acne-prone skin

Who should use Neocutis, and who should skip it?

Great for: people noticing early loss of firmness, fine lines or crepey texture who want a gentle, non-retinoid approach; sensitive skin types; and anyone recovering their routine after professional treatments who wants a calm, supportive formula (check with your provider first).

Skip or check first if: you are pregnant or breastfeeding (ask your doctor about growth factor products), you have known sensitivities to any listed ingredient, or you prefer paraben-free cleansers, since Neo Cleanse Gentle Skin Cleanser contains parabens. As with any new product, patch-test first.

The Best Neocutis Products to Try at DermStreet

Deals current as of November 12, 2026. DermStreet discounts vary by brand, take one code per item, and may change.

Serum (start here)

Neocutis Bio Serum Firm Rejuvenating Growth Factor & Peptide Treatment — The hero: growth factors, three peptides and a vitamin C derivative in a fast-absorbing, fragrance-free serum for the look of lines, texture and firmness. Shoppers at DermStreet often mention smoother, brighter-looking skin and a non-greasy feel.
Deal at DermStreet: 30% off with code VET30

Moisturizers by skin type

Neocutis Bio Cream Firm — Niacinamide and a full ceramide complex make this the everyday cream for normal to dry skin. It sits comfortably under sunscreen and makeup.
Deal at DermStreet: 30% off with code VET30
Neocutis Bio Cream Firm Riche — The winter upgrade: the same actives in a richer, petrolatum-sealed base for skin that feels tight by midday.
Deal at DermStreet: 30% off with code VET30
Neocutis Bio Gel Firm Moisturizing Hydrogel — Peptides and growth factors in a quick-absorbing gel with no greasy residue, ideal for oily and breakout-prone skin.
Deal at DermStreet: 30% off with code VET30

Eyes and cleansing

Neocutis Lumière Firm Illuminating & Tightening Eye Cream — Caffeine, peptides, vitamin C derivatives and hyaluronic acid to target the look of crow's feet, puffiness and under-eye darkness.
Deal at DermStreet: 30% off with code VET30
Neocutis Lumiére Firm Riche Extra Moisturizing Eye Cream — The richer eye cream for dry under-eyes in cold months; a little goes a long way.
Deal at DermStreet: 30% off with code VET30
Neocutis Neo Cleanse Gentle Skin Cleanser — A soft-foaming, glycerin-rich cleanser that removes makeup and oil without stripping dry or sensitive skin.
Deal at DermStreet: 30% off with code VET30

Shop All Neocutis →

Comparing brands? Explore our peptides, loss of firmness and eye treatment collections.

How to add Neocutis to your routine

Morning: Cleanse with Neo Cleanse, apply Bio Serum Firm to face and neck with upward strokes, pat Lumière Firm around the eyes, then your Bio moisturizer and a broad-spectrum SPF 30+ sunscreen as the final step.

Evening: Cleanse, then Bio Serum Firm, eye cream and your moisturizer. If you also use retinol or exfoliating acids, Neocutis layers easily on alternate nights or after those actives have absorbed. In deep winter, swap Bio Cream Firm for the Riche version.

Frequently Asked Questions

Which Neocutis product should I buy first?

Bio Serum Firm, because it is the most concentrated growth factor and peptide step and works for all skin types. Add a Bio moisturizer matched to your skin next.

What is the difference between Bio Cream Firm and Bio Cream Firm Riche?

Both share the same growth factors, peptides, niacinamide and ceramides. Riche adds petrolatum and a richer texture for very dry or mature skin, while the original feels lighter.

Is Neocutis good for oily or acne-prone skin?

Yes. Bio Gel Firm is a lightweight hydrogel suited to oily, combination and acne-prone skin, and Bio Serum Firm is light enough for most skin types.

What does PSP mean in Neocutis?

PSP stands for processed skin cell proteins, the brand's name for its growth factor technology developed from wound-healing research in Lausanne, Switzerland. On current ingredient lists it appears as cutaneous lysate.

Can I use Neocutis with retinol or vitamin C?

Generally yes. Neocutis formulas are gentle and layer well with other actives. Use vitamin C in the morning and retinol at night, and always finish mornings with broad-spectrum SPF 30+.

Where can I buy Neocutis?

You can buy authentic Neocutis at DermStreet.com, a physician-grade skincare retailer with licensed estheticians who can help you choose. Neocutis is currently 30% off at DermStreet with code VET30 (one code per item).

The Bottom Line

Neocutis earns its cult status by being both clinical and kind: growth factors and peptides for firmer, smoother-looking skin, in textures that rarely irritate. Start with Bio Serum Firm, then match the moisturizer to your skin. The full Neocutis lineup is available at DermStreet and is 30% off right now with code VET30. Our licensed estheticians at DermStreet can help — call 888-249-2502 or start a live chat.

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