Earth Rhythm
Earth Rhythm Argan & Black Castor Oil Solid Conditioner Bar Tin, Balance Scalp pH
Earth Rhythm Solid Conditioner Bar with argan and black castor oil is an all-natural hair conditioning bar. Conditioner bars are less wasteful. Unlike most liquid conditioners that are made with around 60 to 80% water, these do not contain water and are full of the ingredients you want. This conditioner bar is infused with the goodness of argan oil which is full of fatty acids, mainly oleic acid and linoleic acid. Argan oil is also rich in vitamin E, which provides a fatty layer to your hair and scalp that help prevents dryness and can help reduce frizziness and also boost shine.
Natural
Sulfate-free
Silicone-free
Paraben-free
Dryness
Frizz
Optimized for Your Environment & Lifestyle
Nykaa
In stock
Recommended
Earth Rhythm Argan & Black Castor Oil Solid Conditioner Bar Tin, Balance Scalp pH
Earth Rhythm
earth-rhythm-argan-black-castor-oil-solid-conditioner-bar-tin-balance-scalp-ph
Conditioner
10202921959717
Morning or Evening?
How often will you use this product?
Notes
Secure payment protection
Your Biodata Compatibility Analysis
Based on your 6 hair health indices and environmental factors
Poor Match
Significant incompatibilities
Growth Cycle Health Index
Hair Match
Hair Health Index Alignment
Optimal for OSI, SSI, DI, HSI
Ingredient Efficacy
Matching Ingredient Score
Environment Compatibility
Current UV, Air Quality & Humidity
Why This Works for Your Specific Profile
Damage Index:
Damage levels outside specified range may not benefit optimally from product formulation
Water Quality:
Fine hair becomes weighed down and greasy from heavy formulation
Hair:
No porosity-specific conflicts
Active Lifestyle:
Activity levels outside optimal range affect product performance and maintenance requirements
Your Hair Profile Integration
Your Hair Archetype
Density Level
Washing Frequency
Shedding Level
Oil Level
Your Hair Health Indices
Oil Secretion (OSI)
Very low oil production
Scalp Sensitivity (SSI)
Very low sensitivity
Growth Rate (CMR)
Poor metabolism rate
Damage Index (DI)
Minimal damage
Hair Strength (HSI)
Very weak strength
Softness Index (SI)
Significant improvement needed
Water & Environmental Integration
Water:
Expected Results & Timeline
Key Highlights
What is it?
Conditioner Bar with 7 main ingredients
Who Is It For
All genders, Adults
Budget
$3.62 - $7.24
Timeline
1-2 minutes for conditioning effectiveness
Why Youโll Love It
What Does It Help With?
Dryness, Frizz
Best for
Dryness
Features
Naturally formulated hair conditioning bar that prevents dryness and boosts shine, Enriched with argan oil and Jamaican black castor oil, Reduces frizz and deep conditions hair, Balances scalp pH levels, Suitable for both men and women
Checks
100% Authentic, cruelty-free, natural, organic
Ingredients Overview
Ingredients List
organic-butyrospermum-parkii-(shea)-butter,argania-spinosa-(argan)-kernel-oil,ricinus-communis-(castor)-seed-oil,guar-hydroxypropyltrimonium-chloride,quaternium-91,cetrimonium-methosulfate,cetearyl-alcohol,dipalmitoylethyl-dimonium-chloride,tocopheryl-acetate,grapefruit-essential-oil
Key Ingredients
Argan Oil, Jamaican Black Castor Oil, Shea Butter, Vitamin E
Ingredients Details
Argan Oil
Common Name(s): Argan oil,moroccan oil
CAS Number: 223747-87-3
DESCRIPTION
What It Does: Conditions and nourishes skin and hair with exceptional fatty acid, squalene, and tocopherol content.
Why It's Used: Premium multi-nutrient facial and hair oil โ its unique phytosterol and squalene composition provides anti-aging benefits beyond simple emolliency.
How It Works: Balanced oleic/linoleic acid ratio provides both emolliency and barrier repair. high squalene content (6-7%) provides antioxidant and sebum-compatible emolliency. tocopherols provide antioxidant stability and skin benefit. phytosterols inhibit 5-alpha-reductase and reduce inflammation.
Typically Found In: Premium facial oils,hair oils,anti-aging products
TECHNICAL DETAILS
Primary Category: Functional ingredient โ emollient
Secondary Functions: Squalene content,phytosterol activity,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ100%
SOURCING & ETHICS
Vegan Status: Yes โ from argania spinosa kernels
Halal Status: Yes
Source Notes: Cold-pressed from roasted (food) or unroasted (cosmetic) argan kernels. unesco world heritage traditional production. fair trade certified sources available.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Argan oil's squalene content (6-7%) is among the highest of all plant oils, second only to olive oil. squalene is an endogenous skin lipid that declines with age, making argan oil's high squalene level particularly relevant for anti-aging facial use โ replenishing both essential fatty acids and age-depleting skin lipids simultaneously.
Last Verified: Cosing database,boucetta et al. argan oil review,cir safety assessment
Primary Sources: 2026-03-12
Quaternium-91
Common Name(s): Quaternium-91
DESCRIPTION
What It Does: Delivers targeted skin-conditioning or bioactive benefits through a specific mechanism of action suited to the formulation's intended purpose.
Why It's Used: Specialty actives address specific skin concerns through targeted molecular mechanisms, providing efficacy beyond what base formulation ingredients alone can achieve.
How It Works: The bioactive compound interacts with specific molecular targets in skin cells or the extracellular matrix โ enzymes, receptors, structural proteins, or signaling molecules โ triggering beneficial biological responses.
Typically Found In: Serums,treatments,moisturizers,specialty products
TECHNICAL DETAILS
Primary Category: Specialty actives
Secondary Functions: Skin-conditioning,anti-aging
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.01โ5%
SOURCING & ETHICS
Vegan Status: Yes
Halal Status: Yes
Source Notes: Specialty active ingredient; check individual sourcing for vegan status.
SKIN COMPATIBILITY
Irritancy Rating: 1
Comedogenicity Rating: 0
Sensitivity Concerns: Low sensitization potential at recommended use concentrations.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.
Works Well With: Niacinamide,hyaluronic acid,vitamin c,peptides
Avoid Combining With: Incompatible with oxidizing agents; check ph stability
SCIENTIFIC NOTE
Specialty actives typically work through enzyme inhibition (e.g., tyrosinase inhibition for brightening, mmp inhibition for anti-aging), receptor activation (e.g., retinoid receptors, ppar-ฮณ for barrier genes), or transcription factor modulation (e.g., nrf2 for antioxidant gene upregulation). structure-activity relationships determine potency and selectivity.
Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature
Primary Sources: 2025-01-15
Shea Butter
Common Name(s): Shea butter,karite butter
CAS Number: 91080-23-8
DESCRIPTION
What It Does: Provides deep nourishing emolliency with anti-inflammatory cinnamic acid esters and a uniquely rich unsaponifiable fraction.
Why It's Used: The most nutritious plant butter โ unique cinnamic acid esters, lupeol, and rich unsaponifiable fraction provide anti-inflammatory and wound healing benefits beyond standard fatty acid emolliency.
How It Works: Cinnamic acid esters absorb uv radiation providing mild natural uv filtering (spf 3-4). lupeol inhibits nf-kb for anti-inflammatory activity. high stearic acid provides occlusive barrier function. rich unsaponifiable fraction (4-9%) provides phytosterols, tocopherols, and triterpenes for bioactive skin benefits.
Typically Found In: Body butters,rich moisturizers,baby products,hair conditioners,lip balms
TECHNICAL DETAILS
Primary Category: Functional ingredient โ emollient
Secondary Functions: Cinnamic acid uv support,lupeol anti-inflammatory,rich emolliency
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 1%โ100%
SOURCING & ETHICS
Vegan Status: Yes โ from butyrospermum parkii nuts
Halal Status: Yes
Source Notes: Unrefined (raw) shea retains more unsaponifiable fraction and stronger natural scent/color. refined shea is odorless, white, and cleaner for formulation. certified fair trade supports west african women's cooperatives.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic (refined); 2/5 โ low (raw/unrefined)
Sensitivity Concerns: Non-irritating.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Excellent safety profile. ewg score: 1.
Works Well With: Humectants,ceramides,actives as carrier
Avoid Combining With: No significant incompatibilities
SCIENTIFIC NOTE
Shea butter's unsaponifiable fraction (4-9%, vs coconut oil's 0.5% and olive oil's 1-2%) is exceptionally rich in triterpenes, phytosterols, and tocopherols. this fraction is responsible for shea's anti-inflammatory and wound healing properties that simple fatty acid analysis fails to reveal.
Last Verified: Cosing database,lin et al. shea butter cinnamic acid study,cir safety assessment
Primary Sources: 2026-03-12
Vitamin E
Common Name(s): Vitamin e,cosmetic active,functional ingredient
CAS Number: N/a
DESCRIPTION
What It Does: Delivers characteristic cosmetic function at recommended use concentration.
Why It's Used: Selected for functional contribution and formulation compatibility supported by cosmetic science and regulatory safety data.
How It Works: Works through the mechanism of its molecular class โ physicochemical or biological interaction with skin proteins, lipids, or receptors as documented in peer-reviewed cosmetic literature.
Typically Found In: Skin care formulations
TECHNICAL DETAILS
Primary Category: Active ingredient โ cosmetic active
Secondary Functions: Skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.1%โ10%
SOURCING & ETHICS
Vegan Status: Conditional
Halal Status: Yes
Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.
SKIN COMPATIBILITY
Irritancy Rating: 1/5 โ very low
Comedogenicity Rating: 0/5 โ non-comedogenic
Sensitivity Concerns: Well-tolerated by most skin types.
Safe for Sensitive Skin: Yes
SAFETY & COMPATIBILITY
Safety Profile: Good safety profile at recommended concentrations. ewg score: 1โ2.
Works Well With: Standard skincare actives
Avoid Combining With: No known significant incompatibilities
SCIENTIFIC NOTE
Vitamin e has an established safety and efficacy profile within the cosmetic regulatory framework at standard use concentrations.
Last Verified: Cosing database,vitamin e technical literature
Primary Sources: 2026-03-12
Personalized Usage Instructions
How to Use
Step 1
Pick up the conditioner bar and hold it in the palm of one hand
Step 2
Run the bar along your hair starting from your temple back towards the nape of your neck ensuring you cover your hair from ear to ear
Step 3
For long hair, lift hair off neck and work the conditioner bar in circular motions at the back of your head
Step 4
Pull hair over one shoulder, hold in one hand and use the other hand to run the conditioner bar down the length of your hair, focusing on the ends
Step 5
Massage hair from root to tip to work product into strands
Step 1
Leave conditioner on hair for 1-2 minutes for maximum effectiveness
Medical Chemicals
Protein/Moisture
- Moisture
pH Level
- Neutral/Acidic
Porosity Taget
- Normal Porosity
Customized for Your Profile
Scalp Condtions
pH Balanced, Dry Scalp, Sensitive Scalp
Climate Suitability
Humid, Dry, UV Protection, Pollution Shield, Summer
Clinical Claims
Frequency
Pick up the conditioner bar and hold it in the palm of one hand. Run the bar along your hair starting from your temple back towards the nape of your neck ensuring you cover your hair from ear to ear. For long hair, lift hair off neck and work the conditioner bar in circular motions at the back of your head. Pull hair over one shoulder, hold in one hand and use the other hand to run the conditioner bar down the length of your hair, focusing on the ends. Massage hair from root to tip to work product into strands. Leave conditioner on hair for 1-2 minutes for maximum effectiveness.
Product Information
100% Authentic
cruelty-free
natural
organic