• Green shampoo bar on a stone surface with plants in the background
  • Herbal Boost shampoo bar with 'The Green Parent' award on a dark background
  • Woman washing hair with shampoo bar
  • Green shampoo bar on a stone soap dish with plants in the background
  • Bar of shampoo in a metal container on a stone surface with greenery in the background
1 5

Bloom In Soap

Herbal Boost - Conditioning Shampoo Bar for Thin, Weak Hair

Herbal Boost - Conditioning Shampoo Bar for Thin, Weak Hair

£9.99
£9.99
Sale Sold out
Taxes included. Shipping calculated at checkout.

For hair that feels thin, weak, or lacks volume

Best for: Thinning, fine, or weak hair that needs strengthening, volume, and support for healthy growth.

Strengthening • Volumising • Growth-Boosting

An award-winning conditioning shampoo bar formulated to gently cleanse while strengthening hair, improving thickness, and supporting healthy growth.

When your hair feels weak oris lacking volume, it’s important to choose a shampoo that not only cleanses gently but also helps fortify from root to tip — supporting stronger, fuller-looking hair over time.

Handcrafted with powerful botanical extracts, Herbal Boost is a sulphate-free, pH-balanced conditioning shampoo bar for thinning and weak hair. It works to strengthen, volumise, and support scalp health — without weighing hair down or causing buildup.

Infused with horsetail herb and organic rosemary herb, inulin, and organic pumpkin seed oil, this bar helps to reinforce the hair structure, improve softness, and enhance natural shine. A refreshing herbal blend of rosemary and peppermint essential oils stimulates the scalp and leaves hair feeling revitalised.

Why your hair will love it

Horsetail Herb – rich in silica to help strengthen weak hair, support growth, and boost scalp circulation

Inulin – a plant-based conditioner that smooths and hydrates without silicone buildup, leaving hair soft and silky

Organic Pumpkin Seed Oil – packed with nutrients to help thicken hair, support growth, and keep hair soft and bouncy

Rosemary & Peppermint Essential Oils – help stimulate the scalp, encourage circulation, and promote healthier hair growth.

Reusable aluminium travel tins available separately.

 

Delivery

Enjoy free standard UK delivery when you spend £45 or more, or free Express UK Delivery when you spend £100 or more! Discount is automatically applied at checkout.

We'll dispatch your order within 2 working days and send it by Royal Mail Tracked Services. Choose from:

Standard Delivery: Tracked 48 service (2-3 days) - up to 2kg: £4.25

Standard Delivery: Tracked 48 (2-3 days) - over 2kg: £7.60

Express Delivery: Tracked 24 (1-2 business days) - up to 2kg: £5.09

Express Delivery: Tracked 24 (1-2 business days) - over 2kg: £8.70

Royal Mail Special Delivery Guaranteed by 1pm: Up to 1kg £11.15

Royal Mail Special Delivery Guaranteed by 1pm: 1-2kg: £14.35

These delivery costs apply to the UK and the Isle of Man. For delivery costs to the USA please click here

How to use

1. Wet your hair and slide the shampoo bar across your scalp 3-5 times, depending on the length and thickness of your hair.
2. Put the shampoo bar down and use your hands to work the lather to cover your scalp and then through the length of your hair.
3. Rinse your hair. If you have a build-up of styling products on your hair you may benefit from a repeat wash.
4. Follow up with a conditioner if you normally use one - this conditioning shampoo bar won't have the same effect as a separate stand alone conditioner.

Plant your labels!

Plant the wildflower seed labels from our range of products and grow beautiful wildflowers in your garden. See our step-by-step planting guide here.

Care

To make your shampoo bar last longer, always dry between uses. Dry on a soap dish with draining holes for the best results.

Full ingredients

In plain English: Sodium Cocoyl Isethionate (Palm-free Coconut Derived Cleanser), Behentrimonium Methosulfate (and) Cetearyl Alcohol (Conditioning Emulsifier), Coco-Glucoside (Palm-free Coconut Derived Foaming Agent), Cetyl Alcohol (Vegetable Derived Emulsifier), Cocoa Butter*, Chicory Root, Clary Sage Flower Water*, Bamboo Extract, Shea Butter*, Pumpkin Seed Oil*, Rosemary Oil, Peppermint Oil, Xanthan Gum, Preservative Eco (COSMOS and ECOCERT approved natural preservative), Rosemary Leaves, Horsetail Herb, Vegetable Glycerin, Citric Acid. Allergen: Limonene
*Organic

INCI: Sodium Cocoyl Isethionate, Cetearyl Alcohol, Coco-Glucoside, Cetyl Alcohol, Theobroma Cacao Seed Butter*, Inulin, Behentrimonium Methosulfate, Salvia Sclarea Flower/Leaf/Stem Water*, Bambusa Vulgaris Stem Powder, Butyrospermum Parkii Butter*, Cucurbita Pepo Seed Oil*, Rosmarinus Officinalis Leaf Oil, Mentha Piperita Oil, Xanthan Gum, Benzyl Alcohol, Glycerin, Rosmarinus Officinalis Leaf, Equisetum Arvense Leaf, Citric Acid, Salicylic Acid, Sorbic Acid, Limonene

Weight

Shampoo bar in aluminium tin and refill size - 60g

Trial size - 30g

View full details
  • sulphate free
  • fairtrade shea butter
  • vegan friendly
  • plastic free
  • Handmade with love
1 6
a woman with shiny hair

Your solution to strong, healthy looking hair

Our conditioning shampoo bars are all you need to achieve super soft and shiny hair. Ideal for the bathroom and for travelling, its lightly conditioning formula will leave your hair clean and manageable, without a plastic bottle in sight

a woman with bleached hair in great condition

Gentle formula that works for every hair and skin type

Our sulphate free formula is safe for use on colour treated and bleached hair, and gentle enough for sensitive, irritated scalps

bamboo extract for healthy hair

Plant-based ingredients for luscious locks

Our superhero ingredients include inulin and bamboo - botanical extracts that act as a natural solution to synthetic silicones that are normally found in traditional liquid shampoo. So you get shiny hair, without the build up. Pair with our conditioner bars for great results.

Petal Power shampoo bar from Bloom In Soap

"It’s such a joy to use and leaves my hair super clean and soft, without drying it out."

"I have fine, wavy hair that has been lightened, bleached, used and abused, and this bar feels so caring and gentle, and unlike a lot I’ve tried, doesn’t affect my colour or dull my blonde. It’s lasting ages too."

- SARAH W

Shampoo bars FAQ's

Can I use this shampoo bar on coloured hair?

Absolutely! Our shampoo bars are safe to use on colour treated and bleached hair. Our sulphate free, ph balanced formula will slow down fading, helping your colour to last longer.

Are your shampoo bars pH balanced?

Yes! Our shampoo bars have a pH of between 4.5 and 6 which is the ideal pH for a healthy scalp and hair.

How long will your shampoo bars last?

Our shampoo bars will last between 2-4 months depending on how often you wash your hair, how long your hair is, and how you store your shampoo bar between uses. As a guide:

Regular size - up to 60 washes

Trial size - up to 30 washes

How long does it take for hair to adjust to shampoo bars?

There is no transition period when you use pH balanced shampoo bars. pH balanced shampoo bars are made in the same way as regular liquid shampoo, minus the water. So if you're tempted to buy a solid shampoo that speaks about a transition period or using a vinegar rinse after use, this is not a pH balanced shampoo bar - it's a soap-based shampoo bar!

What's the difference between soap-based shampoo bars and pH balanced shampoo bars?

Soap-based shampoo bars are soap - the same soap you would use to wash your body with. Soap has a pH of 8-10 which, if used to wash your hair with, will result in higher friction between the hair fibres (think frizzy hair), and could lead to damage and breakage of the hair.

pH balanced shampoo bars are the same pH as your scalp (4.5-6) and provide a gentle cleansing environment that the hair loves.

Do I need to use a conditioner after using shampoo bars?

If you normally use a conditioner after shampooing your hair, you should use a conditioner after using a solid shampoo - shampoo bars work in exactly the same way as liquid bottled shampoo: they clean the hair. That said, our shampoo bars are formulated with light conditioning agents and botanical extracts and so you may find that you don't need to use a conditioner after using them.

How do I make my solid shampoo last a long time?

Storing your shampoo bar correctly will ensure that it lasts as long as possible. Always make sure that you dry your solid shampoo between uses. Store it on a draining soap dish where the air can dry the shampoo bar from all sides; for best results, turn your shampoo bar over every day to allow it to dry thoroughly. You could also use a slice of loofah or simply dry your shampoo bar on the shower rack out of the water.