What Is Kevin Murphy Plumping Pro Duo Litre Set?

Fine or thinning hair can sometimes look flat soon after washing, particularly when a regular shampoo and conditioner routine leaves the roots feeling weighed down. The Kevin Murphy Plumping Pro Duo Litre Set is designed to support a fuller-looking hair routine while cleansing and conditioning the hair.

So, What Is the Kevin Murphy Plumping Pro Duo Litre Set? It is a professional-size shampoo and conditioner pairing that includes PLUMPING.WASH and PLUMPING.RINSE. The set is intended for fine, thin or ageing hair that needs nourishment, softness and visible volume without a heavy finish.

The litre format is useful for people who use the products regularly and want a longer-lasting haircare option. The two products are designed to be used together: the shampoo cleanses the scalp and lengths, while the conditioner adds moisture and helps the hair feel smoother and easier to manage.

What Is Included in the Plumping Pro Duo Litre Set?

The set generally contains two large-format products from the Kevin Murphy PLUMPING range:

• PLUMPING.WASH: A densifying shampoo for fine or thinning hair.

• PLUMPING.RINSE: A densifying conditioner designed to follow the shampoo.

These products are formulated to support hair that appears finer or less voluminous over time. The goal is not to change the number of hair strands but to help each strand look and feel fuller while maintaining softness.

Kevin Murphy describes PLUMPING.WASH as a cleanser that nourishes hair from root to tip and supports a stronger, fuller-looking appearance. PLUMPING.RINSE is designed to condition fine, thin or ageing hair while helping improve its softness, shine and volume.

How Does the Set Help Fine Hair?

Fine hair can lose volume when it is over-conditioned, exposed to humidity or styled frequently with heat tools. A haircare routine for this concern should cleanse the scalp properly while providing moisture to the lengths without leaving behind a heavy coating.

Cleanses Without a Heavy Feel

PLUMPING.WASH is made for hair that needs a lighter but nourishing cleanse. It helps remove everyday build-up, oil and styling residue that can make the roots appear flat. A clean scalp and refreshed roots can help hair look more lifted after drying.

When applying shampoo, focus on the scalp rather than rubbing the lengths excessively. The lather that runs through the hair during rinsing is usually enough to cleanse the mid-lengths and ends.

Conditions the Lengths

PLUMPING.RINSE is the conditioning step in the duo. Fine hair still needs conditioning, especially if the ends feel dry or tangle easily. The key is to apply conditioner mainly from the mid-lengths to the ends rather than directly onto the roots.

The conditioner is designed to provide nourishment while supporting body and a silky texture. This can make hair easier to comb after washing and help it look more polished when styled.

Supports a Fuller-Looking Finish

The products use ingredients such as rice amino acids, creatine and shea butter in the PLUMPING range. Kevin Murphy states that these ingredients help condition, strengthen and support the feeling of thicker hair while providing moisture.A fuller-looking finish can be particularly helpful for people with limp roots, fine lengths or hair that lacks visible body after washing. Results can vary depending on hair texture, styling habits and the amount of product used.

How to Use Kevin Murphy Plumping Pro Duo Litre Set

Using the set correctly can help maintain balance between clean roots and conditioned lengths.

Step 1: Apply PLUMPING.WASH

Wet the hair thoroughly. Apply a small amount of PLUMPING.WASH to the scalp and massage gently with your fingertips. Work the lather through the roots before rinsing completely.

If your hair has heavy product build-up, you may repeat the cleansing step. Avoid using very hot water, as it can leave some hair types feeling drier.

Step 2: Follow With PLUMPING.RINSE

After shampooing, squeeze excess water from the hair. Apply PLUMPING.RINSE through the mid-lengths and ends. Leave it on for one to two minutes, then rinse thoroughly.

Kevin Murphy recommends using PLUMPING.RINSE after PLUMPING.WASH and notes that both products can be used daily as part of a thickening routine. 

Step 3: Style for Added Body

For a more voluminous appearance, dry the roots with your head tilted slightly forward or use a round brush while blow-drying. Avoid applying heavy oils or rich creams near the scalp if volume is your priority.

A lightweight styling product can be used after washing, but apply it sparingly so the hair retains movement.

Who Can Use This Duo?

The Kevin Murphy Plumping Pro Duo Litre Set is suited to people with fine, thin or ageing hair. It may also suit those who want a haircare routine that supports volume while keeping the lengths conditioned.

People with thicker hair can use the duo too, particularly if they prefer a lightweight cleansing and conditioning routine. However, very dry, tightly curled or heavily bleached hair may need an additional moisture treatment or mask alongside it.

Always check the ingredient list before use if you have sensitivities. If you experience scalp irritation or discomfort, stop using the product and seek advice from a qualified professional.

Final Thoughts

The Kevin Murphy Plumping Pro Duo Litre Set combines a densifying shampoo and conditioner for fine, thin or ageing hair. Used together, PLUMPING.WASH and PLUMPING.RINSE help cleanse, condition and support a softer, fuller-looking result without unnecessarily weighing the hair down.