This shampoo keeps my hair clean, soft, and oil-free for days with its ideal conditioner blend and pleasant fragrance.
This shampoo's unique formula combines cleansing and conditioning benefits, keeping my hair fresh for days without grease. The pleasant fragrance and soft results make it my daily essential.
This is a review from Amazon.com about product:
Jack Black - Double-Header Shampoo + Conditioner - PureScience Formula, Coconut Oil and Kelp Extract, Sulfate-Free, Removes Oil and Product Buildup, Lightly Conditions and Soothes, 16 Oz

This product does exactly what it says it does. My hair feels clean and very soft as the conditioner and mixed with the shampoo is a perfect blend. The smell is nice as well, but I am most happy with the way that it leaves my hair looking and feeling. After using this product, I don’t have to wash my hair for a couple days and it still looks and feels nice instead of extremely oily and dirty, like it did before I used this product
Shampoo Basics & Tips
The Science Behind Effective Shampoo Formulas
Modern shampoo formulations like this product combine surfactants and conditioners in a process called coacervation. This technology allows cleansing agents (typically sulfates or sulfate-free alternatives) to coexist with moisturizing components, creating the "perfect blend" mentioned in the review. The balanced pH level (5.5-6.5) helps maintain hair's natural moisture barrier.
Understanding Oil Control Mechanisms
The 2-day oil control effect stems from cationic polymers in the formula. These positively charged molecules bind to negatively charged hair strands, creating an anti-static shield that slows sebum distribution from scalp to hair ends. This explains the "not extremely oily" experience compared to conventional shampoos.
Fragrance Retention Technology
The lasting pleasant scent results from micro-encapsulated fragrance molecules. These time-release capsules break through friction during hair movement, providing continuous freshness. This technology differentiates premium shampoos from basic formulations where scents fade quickly.
Hair Wash Frequency Considerations
Reducing wash frequency (as mentioned "couple days") benefits scalp health by preserving natural oils. Over-washing strips sebum, triggering compensatory oil production. This formula's mild surfactants clean without over-drying, maintaining the scalp's microbiome balance - crucial for long-term hair health.
After six weeks, I noticed thicker-looking hair with this shampoo, though new growth is still slow.
Over six weeks of use, this shampoo enhanced my hair's thickness appearance, providing a fuller look despite minimal new growth, and I recommend it for similar hair loss concerns.
I appreciate the fast fix and shampoo's great impact on my hair.
Despite the initial order error, I received the shampoo promptly and found it effectively nourishes my hair, making it manageable and vibrant with each use.
I like this shampoo for its hair benefits, but find the price a bit high for regular use.
After using this shampoo, I found it provides excellent hair care by enhancing softness and strength, though the high price and small bottle size make it less essential for my routine, but I still appreciate the benefits.
I saw little change with lighter shades, but darker shampoo made my hair visibly darker and improved its look.
When I tried this color shampoo, the lighter shades had almost no visible impact on my hair, but the darker version clearly darkened it, providing a defined and attractive result that met my expectations for hair enhancement.
After trying As I Am shampoo, my dandruff disappeared and hair improved.
I've used As I Am shampoo for dandruff; it cured my condition, softened hair, reduced hair loss, and is budget-friendly.
As a fan, I highly recommend this shampoo for tremendous hair health improvements.
I am a big fan of this shampoo because it has tremendously improved my hair health, leaving it looking and feeling amazing with every use.
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I found that this shampoo restored my hair's softness and reduced tangles.
I love how this shampoo controls dandruff, lathers smoothly, and moisturizes my hair effectively.
I found this shampoo gently clarifies my scalp, stops itching, and keeps hair fresh for days.
I found that Attitude shampoo leaves my hair clean with defined curls.
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