Ingredient review

Quaternium-76 Hydrolyzed Collagen

INCI: Quaternium-76 Hydrolyzed Collagen

A gentle conditioning ingredient that helps reduce static and improve manageability in hair products, with mild film-forming benefits for skin.

beautyskincarehaircare

In plain English

This ingredient is a modified form of collagen, the protein that gives structure to skin and hair. It has been treated with a quaternary ammonium compound, which gives it a positive charge. This positive charge helps it stick to negatively charged hair and skin surfaces, creating a thin, smooth film that reduces frizz, static, and tangles. It also helps hair feel softer and look shinier without being heavy or greasy.

Quick decision guide

Useful, but context matters

Quaternium-76 Hydrolyzed Collagen is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Quaternium-76 Hydrolyzed Collagen.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A semi-synthetic conditioning agent made by attaching a quaternary ammonium group (a positively charged molecule) to hydrolyzed collagen (collagen broken into smaller, water-soluble fragments).

How it works

The positively charged quaternary ammonium group binds to the negatively charged surfaces of hair and skin, forming a thin, flexible film. This film smooths the cuticle, reduces static electricity, and improves slip, making hair easier to detangle and style. On skin, it provides a temporary softening effect.

Pros

Gentle conditioning

Provides smoothness and detangling without the irritation sometimes associated with stronger cationic surfactants.

Reduces static

Effectively minimizes flyaways and static electricity, especially in dry or winter conditions.

Cons and cautions

Potential buildup

With frequent use, especially on fine hair, it can accumulate and cause limpness or dullness over time.

Limited evidence

Most benefits are based on formulation experience rather than large-scale clinical studies on this specific compound.

Best for

  • People with dry, frizzy, or damaged hair
  • Those looking for a gentle, non-irritating conditioner

Use caution if

  • People with very fine or low-porosity hair who may experience buildup
  • Those who prefer completely natural or plant-based ingredients

Usage tips

Use a clarifying shampoo once a week if you notice buildup.
Pair with a lightweight conditioner if you have fine hair to avoid weighing it down.
Apply to damp hair and rinse thoroughly for best results.

Safety summary

Considered safe for topical use at typical concentrations. Rare reports of mild irritation exist, but it is generally well-tolerated. Not known to be comedogenic.

Research notes

Research on quaternium-76 hydrolyzed collagen specifically is limited. However, the safety of quaternary ammonium compounds and hydrolyzed collagen individually is well-documented. The combination is accepted in cosmetic science as a mild conditioning agent.

Common label clues

Typical concentration
0.5% to 5%
Regulatory status
Approved for use in cosmetics in the US, EU, and many other regions. No specific concentration restrictions are common, but formulators follow good manufacturing practices.
Common uses
Conditioners, Hair masks, Leave-in treatments, Shampoos, Body washes
Environmental note
As a semi-synthetic ingredient, its biodegradability may be lower than natural alternatives. Check product labels for eco-certifications if this is a concern.

Good to know

  • This ingredient is often found in rinse-off products; leave-on formulations may require lower concentrations to avoid stickiness.
  • It is compatible with many other conditioning agents and can be part of a multi-ingredient conditioning system.

Common questions

What is Quaternium-76 Hydrolyzed Collagen in beauty products?

This ingredient is a modified form of collagen, the protein that gives structure to skin and hair. It has been treated with a quaternary ammonium compound, which gives it a positive charge. This positive charge helps it stick to negatively charged hair and skin surfaces, creating a thin, smooth film that reduces frizz, static, and tangles. It also helps hair feel softer and look shinier without being heavy or greasy.

What does Quaternium-76 Hydrolyzed Collagen do in a beauty product?

The positively charged quaternary ammonium group binds to the negatively charged surfaces of hair and skin, forming a thin, flexible film. This film smooths the cuticle, reduces static electricity, and improves slip, making hair easier to detangle and style. On skin, it provides a temporary softening effect.

Is Quaternium-76 Hydrolyzed Collagen safe for most people?

Considered safe for topical use at typical concentrations. Rare reports of mild irritation exist, but it is generally well-tolerated. Not known to be comedogenic.

Who should be careful with Quaternium-76 Hydrolyzed Collagen?

People with very fine or low-porosity hair who may experience buildup Those who prefer completely natural or plant-based ingredients

Research sources

Cosmetic Ingredient Review (CIR) - Safety of Quaternary Ammonium CompoundsOpenPubMed - Hydrolyzed Collagen in CosmeticsOpenEuropean Chemicals Agency (ECHA) - Quaternium-76 Hydrolyzed CollagenOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.