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Botanical Aroma
Three steps, one complete routine
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Step 1 · CleanseDiamond Strong Shampoo
17.5 ozA gentle botanical cleanser that helps refresh and strengthen the look of hair.
£39.00 on its own -
Step 2 · ConditionDiamond Strong Conditioner
16 ozA nourishing conditioner that helps improve softness and manageability.
£39.00 on its own -
Step 3 · Free bonusPost-Shampoo Hair Strengthening Treatment
2 oz · leave-in · included freeA lightweight, water-based botanical leave-in that helps support softness, shine and manageability after washing.
£12.00 on its own
A strengthening routine, with a free leave-in bonus
The Diamond Strong Hair Care Set pairs Diamond Strong Shampoo and Conditioner with a free Post-Shampoo Hair Strengthening Treatment. Together they cleanse, strengthen and condition while supporting softness, shine and manageability for a resilient-looking finish.
- Weak or fragile-feeling hair
- Breakage-prone strands
- Dull or stressed hair
- Stronger-looking hair goals
- Safe for color-treated hair
Your ritual in three steps
Cleanse
Wash with Diamond Strong Shampoo and rinse thoroughly. It's sulfate-free, so the lather is lighter; a little more water helps activate it.
Condition
Apply Diamond Strong Conditioner, then rinse thoroughly.
Finish
Apply a small amount of the Post-Shampoo Hair Strengthening Treatment to damp hair and scalp. Massage gently for 2–3 minutes, then style as usual. No need to rinse.
Tip: start with a small amount of the leave-in treatment and adjust based on your hair type and texture.
Better together than on their own
What you can expect
- Stronger-looking, more resilient hair
- Softness and shine without heaviness
- Smoother, more manageable hair
- A gentle cleanse without sulfates or harsh detergents
A good fit if your hair or scalp feels
- Weak, fragile or prone to breakage
- Dull or stressed-looking
- Lacking strength and structure
- Hard to manage
Individual results may vary.
Botanicals for resilient-feeling hair
- Plant ProteinsHelp support the appearance of stronger, more resilient hair.
- Argan, Babassu & OliveBotanical oils that nourish and soften while keeping a lightweight feel.
- Rosemary, Ginger & PeppermintHelp support a fresh, refreshed-feeling scalp.
- Rosemary & Nettle HydrosolsThe base of the leave-in bonus, for a light, fresh post-wash feel.
Full ingredient lists
- No sulfates
- No parabens
- No phthalates
- No synthetic fragrance
- No gluten
- Cruelty-free
Diamond Strong Shampoo
Organic Witch Hazel (Hamamelis virginiana) Hydrosol, Organic Helichrysum (Helichrysum italicum) Hydrosol, Organic Tea Tree (Melaleuca alternifolia) Hydrosol, Organic Rosemary (Rosmarinus officinalis) Hydrosol, Organic Virgin Argan Oil (Argania spinosa), Organic Jojoba Oil (Simmondsia chinensis), Decyl Glucoside, Lauryl Glucoside, Sodium Alginate, Amber Extract, (Gluten Free) Oat Protein, (Plant-based) Keratin Protein, Panthenol DL, Vitamin C, Vitamin E, Vitamin B3, Vitamin B5, Vitamin B6, Lactic Acid, Organic Rosemary (Rosmarinus officinalis), Organic Lemongrass (Cymbopogon flexuosus), Organic Ginger (Zingiber officinale), Organic Lemon (Citrus limon), Organic Cedarwood (Cedrus atlantica), Organic Peppermint (Mentha piperita), Rosemary Extract, Propanediol (naturally derived preservative), Ethylhexylglycerin (naturally derived preservative), Potassium Sorbate (food grade preservative)
Diamond Strong Conditioner
Organic Chamomile (Anthemis nobilis) Hydrosol, Organic Babassu Oil (Orbignya oleifera), Organic Argan Oil (Argania spinosa), Organic Extra Virgin Olive Oil (Olea europaea), Organic Apricot Kernel Oil (Prunus armeniaca), behentrimonium methosulfate (wax, non-GMO Colza plant derived), Cetearyl Alcohol (raw, plant derived), Organic Vegetable Glycerin, (Plant-based) Keratin Protein, (Gluten Free) Hydrolyzed Oat Protein, Glyceryl Stearate, Sodium Stearoyl Lactylate, Panthenol DL, Vitamin E acetate, Vitamin C, Vitamin B3, Vitamin B5, Vitamin B6, Organic Rosemary (Rosmarinus officinalis), Organic Lemongrass (Cymbopogon flexuosus), Organic Ginger (Zingiber officinale), Organic Lemon (Citrus limon), Organic Cedarwood (Cedrus atlantica), Organic Peppermint (Mentha piperita), Rosemary Seed Extract, Propanediol (naturally derived preservative), Ethylhexylglycerin (naturally derived preservative), Potassium Sorbate (food grade preservative)
Post-Shampoo Hair Strengthening Treatment (bonus)
Organic Rosemary Hydrosol (Rosmarinus officinalis), Organic Saw Palmetto Hydrosol (Serenoa repens), Wildharvested Cedar Hydrosol (Thuja plicata), Wildharvested Yucca Hydrosol (Yucca glauca), Organic Nettle Hydrosol (Urtica dioica)
Made with organic and certified organic ingredients, botanical oils and therapeutic hydrolats. Ingredients may vary slightly between batches due to the use of natural and organic materials.
Good to know
What is the free bonus?
Every set includes a 2 oz Post-Shampoo Hair Strengthening Treatment at no extra cost. It's a lightweight, water-based leave-in made with botanical hydrosols, applied to damp hair and scalp after washing.
Is it safe for color-treated hair?
Yes. The set is gentle and suitable for color-treated hair.
How often should I use the post-shampoo treatment?
After washing, as often as you like. Start with a small amount and adjust based on your hair type and texture.
Does the shampoo lather?
Yes. Because it is sulfate-free, the lather is lighter and more natural than conventional shampoos. Adding more water helps activate it.
Will it weigh my hair down?
No. The system is designed to stay lightweight while supporting strength and softness.
Does it contain synthetic fragrance?
No. The formulas are scented with botanical ingredients and essential oils. The shampoo and conditioner have an invigorating fresh aroma balanced by crisp woody undertones. The leave-in bonus has a light, natural herbal aroma from its hydrosols.
Inspired by restorative strength
Diamond Strong is inspired by building a stronger-feeling, more resilient ritual through botanical care that supports softness, shine and everyday balance.
- Handcrafted in the USA in small batches
- Sustainably minded ingredient sourcing
- Cruelty-free
- Recyclable BPA-free plastic and/or glass packaging
These products are cosmetics. They are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.