Kevin Murphy
Thick Again
Thickening Leave-In for Fine Thinning Hair
Builds strand thickness instantly and over time. Heat protection included.
A leave-in thickening treatment for fine and thinning hair — eyelash plumping technology builds strand density instantly and over time, with heat protection to 216˚C.
- Volume
- Fine hair
- Thinning hair
- Treat
Leave-In · Heat Protection 216˚C · Eyelash Plumping Technology · Sulphate-Free · Vegan
This is probably for you if…
- Fine hair needing density and strand strength
- Thinning hair with scalp health concerns
- Heat-styled fine hair needing daily thickness support
- Stimulate Me Wash and Rinse users wanting the treatment step
In stock + ready to ship
Unopened + unused items may be eligible for exchange or store credit within 14 days. Returns policy
- Free shipping $100+Canada + U.S. · duties included
- Packed by ModaBowmanville, Ontario
- Earn Inner CirclePoints on eligible orders
Use it with
Complete the routine.
A simple system layered for your hair.
Add the full routine.
$224.00
What it does
- Eyelash plumping technology builds visible strand thickness immediately
- Horse Chestnut improves scalp microcirculation for long-term density support
- Nettle and Baobab fortify, repair and strengthen fine thinning strands
- Heat protection to 216˚C / 420˚F — no separate protectant needed
Perfect for
- Fine
- Thinning
- Low-density — all textures
How to use
- Prep with Stimulate Me Wash and Rinse, then towel dry.
- Spray evenly throughout damp or towel-dried hair.
- Concentrate at roots and scalp.
- Do not rinse — leave in.
Routine step
Why we like it
The Moda Team Review
As a White Haven Kevin Murphy salon, Thick Again is the leave-in we reach for when a client’s concern is density — how much hair is actually there and how strong each strand is — rather than just volume. The Horse Chestnut scalp work and the eyelash plumping technology address the root cause, not just the appearance.
Read full stylist notes
The client who comes in every six weeks and mentions their hair has been feeling progressively thinner — not dramatically, but enough that their ponytail feels lighter and their scalp is more visible at the part. Their colour and cut look great but the density concern is growing. We pair them with Stimulate Me Wash and Rinse and Thick Again for 14 days and ask them to report back. The response is consistently that their hair feels noticeably stronger and fuller at the roots within the first two weeks. Kevin Murphy developed Thick Again by adapting the scientifically proven eyelash plumping technology from Body Mass — a women's thickening treatment that had already proven the mechanism worked on fine hair fibres. The same tripeptide and botanical system that physically builds lash diameter translates directly to building hair shaft diameter. What distinguishes this from most thickening sprays is the scalp treatment ingredient stack underneath it.
Moda
What’s inside — and why it’s there
The ingredients worth knowing.
- Eyelash Plumping TechnologyOriginally developed for cosmetic lash thickening — the same mechanism that builds diameter on a lash fibre physically builds diameter on...
- Horse Chestnut Seed ExtractContains aescin, a saponin with vasoconstrictive and circulation-stimulating properties. In a scalp context, improved microcirculation me...
- Baobab Fruit ExtractRich in omega fatty acids 3, 6 and 9 alongside vitamins A, D and E — penetrates the cortex to repair damaged internal hair structure and ...
How to use
Use it the way we would.
- Prep with Stimulate Me Wash and Rinse, then towel dry.
- Spray evenly throughout damp or towel-dried hair.
- Concentrate at roots and scalp.
- Do not rinse — leave in.
- Dry and style as usual. Safe for heat up to 216˚C / 420˚F.
- Use consistently for 14 days for full treatment benefit.
Moda stylist tipKevin Murphy recommends the Stimulate Me Wash, Rinse and Thick Again trio for 14 consecutive days for the full treatment result. One or two uses shows the immediate styling benefit. Consistent use is what delivers the longer-term density improvement.
Not sure this is the one?
Compare the family.
Start with what your hair is doing — not the bottle.
| Angel | Plumping | |
|---|---|---|
| Best for | Fine or colour-treated hair | Fine or thinning hair |
| Main goal | Lightweight body | Density + fullness |
| Hair feels | Fine / flat | Fine / thinning |
| Start here if… | Your hair wants body without weight | Your hair is thinning or wants a fuller look |
Reviews
Questions? We get them.
Good to know.
The questions we hear most about this product. If yours isn’t here, a real stylist will answer.
Ask ModaIs Thick Again different from Body Mass, or are they the same product?
No — they use the same eyelash plumping technology but are different products for different users. Kevin Murphy created Thick Again specifically for fine or thinning hair with scalp health ingredients like Horse Chestnut for microcirculation and Nettle for follicle fortification. Body Mass is the styling-focused thickening treatment. Both build thickness; Thick Again does more at the scalp treatment level.
Do I need to use it for 14 days before I see any difference?
No — the eyelash plumping technology delivers visible thickness from the first use. The 14-day trio protocol Kevin Murphy recommends is for the full treatment benefit: the scalp microcirculation work from Horse Chestnut and the follicle-fortifying work from Nettle need consistent use to build. Immediate styling result on day one, cumulative treatment result over two weeks.
I already use Plumping Wash and Rinse. Should I use Thick Again on top, or is it redundant?
No — they work at different stages and are not redundant. Plumping Wash and Rinse densify through the cleanse and condition steps using Rice Amino Acids and follicle-stimulating ingredients. Thick Again applies after towel-drying and delivers the eyelash plumping technology and scalp treatment ingredients to dry hair before styling. You can use both together for the most complete thickening routine.
Is Thick Again designed only for men, or can women use it?
No — although Kevin Murphy originally developed it for men, the formula works on any hair type experiencing fine or thinning concerns regardless of gender. The ingredients address strand density and scalp health, both of which are relevant concerns for women too. Kevin Murphy's own blog confirms it works for all hair types.
Can I use Thick Again with a blow-dryer or hot tools, or do I need to air-dry?
Yes — Thick Again has built-in heat protection up to 216°C / 420°F, so it works safely with blow-dryers, flat irons and any standard hot tool. Dry and style as you normally would after applying. No separate heat protectant is needed on top of it.
Works with this
Works with this.
Returns
Unopened + unused products may be eligible for exchange or Moda store credit within 14 days.
Returns policy
Need help choosing?
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