Best Leave-In Conditioners of 2025, Picked by 5 Leading AIs
We gave 5 top AIs—including GPT-5, Claude, and Gemini—one mission: rank the best leave-in conditioners after analyzing thousands of reviews and debating key factors like repair and frizz control. This is their definitive, AI-verified verdict.
No.1 AI-Picked Product
We had 5 AI models rank their top 5 products. We tallied the scores. Here's the winner with the highest score.
Olaplex No. 6 Bond Smoother
The Olaplex No. 6 Bond Smoother was ranked #1 by 4 out of 5 AIs, earning a total score of 22/25 across all models with an average rank of 1.6. It won for its patented bond-building technology that repairs damaged, color-treated hair while providing 72-hour frizz control and lightweight detangling suitable for all textures. Users and pros praise its transformative smoothness without greasiness, making it the top choice in 2025 reviews.
What Each AI's Top Pick:
"Recent professional and user reviews consistently praise its best-in-class detangling, moisture balance, and heat/UV protection across straight, curly, and color-treated hair. The vegan formula leans cleaner while still powerful, and the fresh salon scent is highly rated."
"Delivers exceptional moisturizing and detangling performance while actively repairing damaged hair bonds, making it ideal for all hair types especially color-treated hair. The lightweight, fragrance-free formula contains patented bond-building technology that consistently receives praise from both professionals and users for transforming hair texture and manageability."
"This product ranks highest for its patented bond-building technology, which not only moisturizes and detangles but actively repairs damaged hair, making it exceptional for color-treated and heat-styled types. Its concentrated formula provides unmatched frizz control for up to 72 hours, justifying its top position."
"This product excels in moisturizing and detangling with its bond-repairing technology, making it highly effective for damaged, color-treated hair while also suiting curly and straight types. Its synthetic formulation with clean ingredients offers a subtle, pleasant scent that users rave about in 2025 reviews for reducing breakage without greasiness."
"Ranked #1 for its exceptional reparative properties, universal suitability for all hair types, and ability to deeply moisturize and detangle without weighing hair down."
The AI Leave in conditioner Leaderboard
See the total score and rank each product received from every AI model
Olaplex No. 6 Bond Smoother
It's a 10 Miracle Leave-In Product
Briogeo Farewell Frizz Rosarco Milk Leave-In Conditioning Spray
Moroccanoil All-in-One Leave-In Conditioner
Pureology Color Fanatic Multi-Tasking Leave-In Spray
Moroccanoil Treatment Light
Mizani 25 Miracle Milk Leave-In Conditioner
SheaMoisture Coconut & Hibiscus Curl Enhancing Smoothie
It's a 10 Miracle Leave-In Product Plus Keratin
Living Proof Perfect Hair Day 5-in-1 Styling Treatment
Mielle Organics Pomegranate & Honey Leave-In Conditioner
Kérastase Nutritive Nectar Thermique Blow-Dry Primer
Ouai Leave-In Conditioner
SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Leave-In Conditioner
See Each AI's Full Top 5 Ranking
Here's exactly how each AI ranked the products. Click on each AI to see their complete, unedited reasoning.
GPT-5's Top 5 Rankings
Claude Sonnet 4's Top 5 Rankings
Gemini 2.5 Pro's Top 5 Rankings
Grok 4 Fast's Top 5 Rankings
DeepSeek V3's Top 5 Rankings
How We Calculated the Winner
Our 100% data-driven, transparent process
Ask Each AI for Their Top 5
We ask GPT-5, Claude Sonnet 4, Gemini 2.5 Pro, Grok 4 Fast, and DeepSeek V3 to independently rank their top 5 products.
Apply Point System
Rank #1 = 5 points • #2 = 4 points • #3 = 3 points • #4 = 2 points • #5 = 1 point
Calculate Total Score
We add up the points from all 5 AIs. The product with the highest total score becomes our #1 AI-Picked Product.
You Decide
We show you the data. You make the choice based on your priorities and needs. This is a 100% data-driven process—we don't change the results.
Our Process
Independent Analysis
We ask ChatGPT-4, Claude 3.5, Gemini, and Perplexity the same question separately. No AI sees another's answer.
Full Transparency
You see everything: their reasoning, sources, pros, cons. We don't hide disagreements or cherry-pick answers.
You Decide
We present the data. You make the choice based on your priorities, budget, and needs. Because you're absolutely right.
Updated Monthly
Product markets change. We re-run AI debates monthly to keep recommendations current.
Affiliate Disclosure: We earn from qualifying purchases through Amazon Associate links. This helps us maintain this free service. Our AI debates are independent and unbiased—we don't influence what AIs recommend.