Nonapeptide-1

What is Nonapeptide-1?

Nonapeptide-1 is a synthetic oligopeptide made up of nine amino acids, engineered in laboratories to replicate certain biological signaling sequences. It falls under the peptide category in cosmetics, commonly incorporated into skincare serums, creams, and hair products. As a conditioning agent, it works by forming a protective film on the skin or hair surface, which helps retain moisture and reduces friction. This interaction enhances the skin's suppleness and the hair's shine without penetrating deeply into the dermis. Its small molecular size allows mild absorption to support surface-level hydration and barrier integrity. Derived purely from chemical synthesis using amino acid building blocks, it avoids plant or animal origins, making it suitable for various formulations focused on daily maintenance of skin and hair texture.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.

Benefits

Supports skin softness and smoothness through surface conditioning.

Promotes hair manageability by minimizing friction and static.

Helps maintain skin flexibility for a comfortable feel.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals with dry or rough skin seeking improved texture.
People with known peptide sensitivities, though rare.
People with dull hair wanting better shine and softness.
Individuals preferring fully natural ingredient lists.
Those using conditioning products for everyday skin and hair care.
Those with allergies to synthetic amino acid derivatives.

Safety Notes

  • Rated low hazard by environmental working group assessments.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Nonapeptide-1

What is Nonapeptide-1 used for?

It functions as a skin and hair conditioning agent to enhance softness and smoothness.

Is Nonapeptide-1 safe for daily use?

Yes, it has a low safety rating and is non-comedogenic for most people.

Does it work on all skin types?

It supports conditioning across skin types, especially dry or rough ones.