Bumble and bumble. Seaweed Hydrating Shampoo, 250 g

Bumble and bumble. Seaweed Hydrating Shampoo is described as a gentle, lightweight cleanser that helps balance scalp moisture. The listing targets fine-to-medium hair and daily washing, and claims it is sulfate-free and colour-safe.

At a glance

Aims to cleanse gently while supporting balanced scalp and hair moisture.
The listing describes it as lightweight, sulfate-free, vegan and colour-safe.
Its highlighted botanical ingredients are Royal Sugar Kelp, Pacific Sea Kelp and Green Microalgae.
The scalp-hydration result is a manufacturer claim based on use with Seaweed Conditioner, not shampoo alone.

Price

£20.30Save 30%

Reference price: ~~£29.00~~

Price checked: 12 Nov 2026

View offer

Pros and cons

Pros

Customer feedback describes thorough cleansing without stripping moisture and a light, clean scent.
Reported as not weighing hair down, with some customers appreciating its lightweight detangling effect.
Targeted at fine-to-medium hair and people who wash daily, as well as all hair types seeking lightweight moisture.

Cons

Customer feedback is divided on softness, with some reporting soft hair and others saying their hair feels greasy.
Opinions on the price are mixed, with some customers considering it worthwhile and others finding it expensive.

Technical specifications

8 specifications

Identity
Brand	Bumble and Bumble
Item model number	B3R9010000

Product details
Dimensions and weight listed	6.4 x 6.4 x 14.3 cm; 250 g
Country of origin	USA

Formula and use claims
Hair suitability	All hair types seeking lightweight, balanced moisture for scalp and strands. Especially suited for Fine-to-Medium hair or daily washers.
Formula claims	This vegan formula is made from 93% naturally derived ingredients.* *Using the ISO 16128 Standard, from plant, non-petroleum mineral, and/or water sources.
Scalp hydration claim	91% showed improved scalp hydration in clinical testing on 32 subjects when used together with Seaweed Conditioner after using 3 times.
Colour care	Color Safe.

Who is it for?

A good fit for

Fine-to-medium hair or frequent washers looking for lightweight cleansing and moisture.
Buyers seeking a colour-safe shampoo according to the listing.
Those interested in a vegan formula with a stated naturally derived ingredient proportion.

Less suited to

Anyone seeking a shampoo with consistently predictable results for hair softness, given mixed customer experiences.
Buyers who require a confirmed ingredient list or a product tailored to a specific scalp condition, neither of which is detailed here.

Bumble and bumble. Seaweed Hydrating Shampoo, 250 g · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 555 ratings

5 stars75%75%
4 stars10%10%
3 stars7%7%
2 stars3%3%
1 star5%5%

Customer feedback highlights cleansing without stripping moisture, a light clean scent and a lightweight feel, including reports of easy detangling. Experiences with softness differ, with some describing soft hair and others reporting a greasy feel. Value opinions are also split. These are customer impressions, not proof that the shampoo will behave the same on every hair type. Its lightweight positioning and intended use for fine-to-medium hair or daily washing may be relevant to those weighing these reports.

Positive themes

Customers describe thorough cleansing without stripping moisture.
Customers mention a light, clean scent and a lightweight feel.
Some customers appreciate its lightweight detangling effect.

Mixed feedback

Feedback on hair softness varies, including reports of greasy-feeling hair.
Opinions differ on whether the price feels worthwhile.

Frequently asked questions

Who is this shampoo intended for?

The listing says it suits all hair types seeking lightweight, balanced moisture, with particular emphasis on fine-to-medium hair and daily washers.

Does the scalp-hydration claim apply to shampoo used by itself?

No. The stated result is from clinical testing on 32 subjects using this shampoo together with Seaweed Conditioner after three uses.

Is it described as colour-safe and sulfate-free?

Yes. Both claims appear in the product title or listing details. The supplied information does not include a full ingredient list.

What do customers report about the results?

Customer feedback describes cleansing without stripping moisture and a light scent, but experiences of softness are mixed, with some reporting greasy-feeling hair.