Introduction — Lather Up with Herbs 🌿
The Rosemary shampoo bar is a simple way to incorporate the full benefits of pure rosemary into your hair care routine. Rich in antioxidants and scalp-stimulating actives, rosemary has been used for centuries in herbal hair tonics — and it’s just as relevant today for those seeking healthier hair and a balanced scalp.
This solid shampoo creates a creamy, herbal lather that gently yet effectively cleanses. No sulfates, no silicones, no synthetic fragrances — just plant-based ingredients that care for your hair from root to tip. And because it’s a bar, there’s no plastic bottle in sight.
If you’ve been curious about natural shampoo bars, this DIY version is a great place to start. Whether you want to strengthen hair, soothe an irritated scalp, or simply enjoy a more eco-friendly way to care for your hair, this formula delivers — the power of pure rosemary in every wash.

Why is Rosemary in Haircare? 🌿
There’s a reason why rosemary has such a long tradition in natural haircare. Known for its ability to boost hair growth and support overall scalp health, this versatile herb offers far more than just a fresh, herbal scent.
When used in hair products, rosemary helps stimulate blood circulation in the scalp — one of the key factors in encouraging healthy hair follicles and promoting stronger hair growth over time. Improved circulation brings more oxygen and nutrients to the hair roots, supporting both the growth phase and the overall condition of your hair.
Its antifungal and antibacterial properties also make rosemary a great ally for anyone dealing with scalp imbalances. It helps soothe itchy scalp, reduce dandruff, and calm irritation, making it suitable even for those with sensitive skin.
And, of course — the aroma itself is part of the experience. Bright, herbal, and energizing, pure rosemary brings a sense of freshness to your haircare ritual — something you’ll look forward to with each use.
Ingredients & Their Benefits ✨
Each ingredient in this rosemary shampoo bar has been selected for a specific role — to deliver effective cleansing, nourish the scalp, and support healthy, strong hair:
- Mango butter → A rich source of fatty acids and vitamins A and E. Mango butter nourishes and conditions the hair, helping to prevent dryness and breakage. It also gives the shampoo bar a creamy consistency, leaving hair soft and manageable after each wash.
- Sodium Cocoyl Isethionate (SCI) → A very mild surfactant derived from coconut oil. SCI produces a dense, creamy lather that gently removes excess oil and impurities without stripping the scalp — making it suitable even for sensitive skin and itchy scalp.
- Sodium Coco-Sulfate (SCS) → A stronger, coconut-based surfactant that boosts the bar’s cleansing power and foam. It works in combination with SCI to ensure effective cleansing while still respecting the scalp’s natural balance.
- Demineralized water → Provides the necessary moisture for blending the formula. Using pure water helps maintain the bar’s stability and prevents unwanted reactions with minerals that could affect hair or scalp.
- Panthenol (Provitamin B5) → Known for its ability to strengthen hair from within. Panthenol improves elasticity, adds shine, and helps protect hair from breakage and split ends. It also soothes the scalp and helps maintain moisture levels.
- Guar gum → A natural thickener and conditioning agent. Guar gum improves the bar’s texture and glide, making it easier to apply while also adding softness and smoothness to the hair after washing.
- Rosemary powder → Brings the full power of pure rosemary into the shampoo bar. It stimulates scalp circulation, promotes hair growth, and offers antifungal and antibacterial properties that help maintain a healthy scalp environment — particularly beneficial for those prone to itchy scalp or dandruff.
Together, these natural ingredients create a pH-balanced, eco-friendly shampoo bar that cleanses effectively while caring for both hair and scalp — with no need for harsh chemicals or plastic packaging.

Benefits of This Rosemary Shampoo Bar 💚
- Encourages hair growth → The stimulating action of rosemary powder improves scalp circulation, helping to nourish the hair follicles and encourage healthy hair growth over time.
- Reduces hair loss → Strengthening the roots and improving scalp health can help minimize hair shedding. Regular use supports a healthier scalp environment that promotes stronger, fuller hair.
- Soothes scalp irritation and dandruff → Thanks to the herb’s anti-inflammatory and antiseptic properties, this shampoo bar helps to calm an itchy scalp and reduce dandruff, supporting scalp balance and comfort.
- Prevents breakage and split ends → The combination of mango butter, panthenol, and guar gum strengthens hair fibers, improves elasticity, and protects against breakage — leaving hair smoother and more resilient.
- Leaves hair soft and silky → After each wash, hair feels naturally soft and silky, with improved texture and shine — without residue or heaviness.
- Natural care, no harsh chemicals → This formula is crafted from natural ingredients and free from harsh chemicals such as sulfates, silicones, parabens, or synthetic fragrances — making it gentle for both hair and the environment.
- Plastic-free and travel-friendly → As a solid shampoo, this bar is completely plastic-free, zero waste, and perfect for travel — no liquid restrictions or bulky bottles required.
DIY Recipe — How to Make Rosemary Shampoo Bar 🧼
Ingredients for approx. 100 g:
- Mango butter → 9 g
- Sodium Cocoyl Isethionate (SCI) → 30.5 g
- Sodium Coco-Sulfate (SCS) → 30 g
- Demineralised water → 19.5 g
- Panthenol (Provitamin B5) → 2 g
- Guar gum → 4 g
- Rosemary powder → 4 g
- Preservative (Geogard 221 or similar) → 1 g
Important: When working with powdered surfactants such as SCI and SCS, always wear a protective mask to avoid inhaling fine particles. Handle powders gently and avoid creating dust.
Method:
- Weigh each ingredient carefully using a precision scale.
- Slowly melt the mango butter over low heat in a heat-resistant glass beaker. This forms the base for your shampoo bar.
- Remove from heat. Add Sodium Cocoyl Isethionate (SCI), Sodium Co-sulfate (SCS), and demineralized water (Phase B) to the melted butter. Mix well until a smooth paste forms.
- Add panthenol, guar gum, rosemary powder, and preservative (Phase C). Mix thoroughly to achieve a uniform, dough-like consistency.
- Press the mixture firmly into your chosen silicone molds (heart-shaped or other).
- Place in the fridge for about 20 minutes to set.
- Unmold carefully and allow the shampoo bars to air dry for 2 to 7 days in a cool, dry place. This helps the bars harden properly for the best performance.
Shelf life: approx. 6 months.
How to Use 🌸
Using this rosemary shampoo bar is simple — and once you try it, you may never go back to bottled shampoo.
- Wet your hair thoroughly under warm water.
- Wet the shampoo bar slightly, then either rub it gently between your hands to create a lather or apply it directly to the scalp in circular motions.
- Massage the lather into your scalp, working your way through the lengths of your hair. Take a little time here — the massage will help to invigorate the scalp, stimulate blood circulation, and support healthy hair growth.
- Rinse thoroughly with warm water, making sure to remove all products from the scalp and hair.
For best results, follow with a light conditioner or a simple vinegar rinse to help balance pH and leave your hair feeling soft and strengthened.
With regular use, this shampoo bar helps to cleanse effectively while caring for the scalp and hair — leaving both looking healthy, strong, and naturally shiny.

Sustainability Tip 🌍
Switching to shampoo bars is one of the simplest ways to start reducing waste in your beauty routine.
Unlike conventional shampoos or regular shampoos, which often come in plastic bottles and contain unnecessary fillers, this solid bar offers the same gentle cleansing — with none of the packaging waste.
One bar can easily replace two to three bottles of liquid shampoo, helping you cut down on plastic and streamline your haircare routine. Plus, by making your own, you know exactly what’s going into your product — only natural ingredients, no synthetic additives, no harsh detergents.
And thanks to its compact form, this bar is perfect for travel too — no spills, no airport restrictions.
Wrap-Up — Herbal Hair Ritual 🌿
If you’re looking for a simple way to care for your hair naturally — while also reducing waste — this rosemary shampoo bar is well worth trying.
Gentle, effective, and full of pure rosemary goodness, it supports a healthy scalp, encourages hair growth, and leaves your hair feeling clean, soft, and silky — without the need for plastic bottles or conventional shampoos.
If you’d like to explore more ways to bring rosemary into your beauty routine, here are a few favorites:
- Learn how to make your own rosemary oil infusion.
- Discover the many benefits of rosemary in skincare.
- Soothe tired muscles with this rosemary massage oil.
- Hydrate and nourish with a simple rosemary cleansing body oil.
And if DIY isn’t quite on your list this month, this ready-made option is a lovely alternative: Seek Bamboo Rosemary Shampoo Bar. 🌿
For even more ideas, take a look at:
Happy blending — and if you try this bar, I’d love to hear how it works for you! 🌿✨
Until next time,
Kristina