Revive and Shine with The Ordinary Hair Serum

The Ordinary has earned a cult following for its straightforward, affordable skincare products. Now the brand is making waves in the haircare realm with its Multi-Peptide Serum for Hair Density. This lightweight, nourishing serum aims to restore luster, smoothness, and fullness to all hair types.

Packed with peptides, amino acids, and oils, The Ordinary Hair Serum promises to breathe new life into dull, flat, and damaged locks. Keep reading to learn how this product can transform the look and feel of your hair.

Where to Buy The Ordinary Hair Serum

The Ordinary Hair Serum retails on the brand’s website for $17.80 USD and is also available on Amazon. One bottle contains 60 ml. Be sure to look online for discounts on The Ordinary Hair Serum. The brand offers sales throughout the year, and you can use this the ordinary promo code for 10-15% off sitewide. Signing up for The Ordinary’s email newsletter is also a great way to receive notifications about upcoming promotions and limited-time offers on their haircare products. With a little searching, you can likely score this top-rated serum for less.

Benefits of The Ordinary Hair Serum

Using The Ordinary Hair Serum provides multipurpose benefits for reviving sad, lackluster strands.

Hydrates Dry, Damaged Hair

The serum contains hydrating and conditioning agents that increase moisture levels in dehydrated hair. Dry, brittle hair drinks up the nourishing oils and hydration to become supple and strong again.

Smooths Frizz and Flyaways

The Ordinary Hair Serum tames unruly textures, smoothing down frizz and flyaway hairs that can create volume in all the wrong places. Peptides reinforce bonds to control errant strands.


Adds Softness and Shine

As it hydrates, the serum also imparts an undeniable softness, silkiness, and shine to the hair. Light reflects off smooth, conditioned strands for a luminous effect.


Key Ingredients in The Serum

The Ordinary Hair Serum relies on three key ingredients to nourish, smooth, and volumize the hair.

Argan Oil

Argan oil, pressed from the nuts of Moroccan argan trees, provides a concentrated dose of fatty acids and antioxidants like vitamin E to improve hair’s elasticity and shine. This lightweight oil hydrates without weighing hair down.

Amino Acids

A proprietary blend of amino acids in the serum helps to strengthen and protect the hair cuticles. This prevents damage and breakage that thins hair over time. Amino acids also add shine.

Hyaluronic Acid

Hyaluronic acid is a powerhouse hydrator, attracting and binding moisture within the hair to boost its volume. The added plumping effect makes hair strands look and feel thicker.

How to Use The Ordinary Hair Serum

Using just a small amount of this highly concentrated serum, here is a simple step-by-step for application:

Step 1: After cleansing hair, towel dry hair until damp. Do not apply products to soaking wet hair.

Step 2: Pump a pea-sized amount of serum into your hands and rub together.

Step 3: Evenly smooth serum through mid-lengths to ends, avoiding roots.

Step 4: Let air dry or style as normal. Serum may cause slight tackiness if used in excess.

Tip: Focus application on the most damaged areas rather than all over for targeted repair.

The Serum for All Hair Types

No matter your hair type or texture, this nourishing serum can provide targeted benefits.

Dry and Brittle Hair

If your hair tends to be very dry and brittle, the hydrating oils and humectants in the serum will restore much-needed moisture to improve manageability and shine.

Thin and Limp Hair

For those struggling with flat, limp locks, the volumizing and strengthening ingredients in the serum will add fullness and vitality.

Curly and Coiled Hair

The frizz-fighting peptides help define curls and coils while retaining moisture, without weighing down textured hair.

Adding to Your Routine

The Ordinary Hair Serum is versatile enough to be used in different ways.

After Washing

Using after shampooing on damp hair allows the serum to penetrate and provide lasting hydration and protection.

Before Styling

Applying heat styling creates a protective barrier against damage from hot tools.

As a Mask Treatment

For an intensive conditioning treatment, apply a quarter-sized amount to dry ends, put hair in a shower cap, and let sit for 30 minutes before rinsing out.

Reviews of The Ordinary Serum

User reviews highlight the impressive effects of the serum after just one use.

Fast-Absorbing Lightweight Formula

Reviewers love that the serum soaks in quickly without leaving behind a greasy residue or weighing hair down. A little goes a long way.

Soft, Silky Hair After One Use

Many note remarkable softness and silkiness after using the serum just once or twice. Hydration restores a healthy feel and shine.


For any hair type needing a boost of hydration, strength, and shine, The Ordinary Multi-Peptide Serum for Hair Density delivers nourishing ingredients that revive damaged, lifeless locks. This affordable serum helps reinforce and protect hair, leaving it silky smooth, vibrant, and full. Give your hair the revitalizing treatment it deserves!


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