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Description
Intermediate Organic ChemistryThe mission of Intermediate Organic Chemistry is to bridge the gap between introductory Organic Chemistry coursework and advanced graduate level coursework but to do so in a way that extends the student centered approach of most modern introductory Organic Chemistry textbooks. This text makes extensive use of detailed explanations and color coding to facilitate the learning process. This texts style is one that is shared by many instructors of Organic
The mission of Intermediate Organic Chemistry is to bridge the gap between introductory Organic Chemistry coursework and advanced/graduate-level coursework but to do so in a way that extends the student-centered approach of most modern introductory Organic Chemistry textbooks. This text makes extensive use of detailed explanations and color coding to facilitate the learning process.
This textÕs style is one that is shared by many instructors of Organic Chemistry: mechanistically driven and detailed. Extensive use of color coding helps students to learn mechanism and cogently predict reaction products. The electrons that are mechanistically involved in each transformation are color coded. The mechanistic arrows originating from those electrons are colored identically, as are the bonds and/or lone pairs that result from the electron flow. This approach, along with detailed verbal explanations, conveys the narrative of the mechanism.
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4.2 ★★★★★
Based on 838 reviews
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Product Reviews
★★★★★ 5
Clear Self Tanner, Main Character Results
Color: Ultra Dark, Size: 16 Fl Oz (Pack of 1)
I love, love, LOVEEE b.tan. I discovered them during lockdown in 2020 when we were all chasing serotonin and a decent glow, and I’ve been loyal ever since. The scent, the color, the fact that I never end up orange or streaky… they’ve earned my trust. So when I saw they had a clear gel formula, curiosity won. Immediately.
And yes, it delivered.
Packaging (small detail, big win):
Before we even get to the tan itself, I need to mention the pump clip. The bottle arrived with a little clip around the pump stem so it couldn’t be pressed during shipping. No leaks. No mystery tan explosions. I’ve kept the clip for travel because it’s genius. More brands need to do this.
Gel consistency:
This gel is the perfect middle ground. Not thick and sticky, not watery and messy. It spreads easily and evenly, especially with a tanning mitt, which I always recommend no matter the formula. It glides on smoothly and blends without effort. No panic blending, no racing the clock.
No-rinse, no transfer:
It goes on completely clear, which means no guide color, no stained sheets, and no awkward “don’t touch me” phase. It dries fairly quickly too. I was dry enough in about 10 minutes to throw on loose sweats and go about my evening. Dark, loose clothing is still your friend, but this formula is forgiving.
Color & glow:
This develops fast. Within 20–30 minutes, I could already see color starting to come through. By about 5–6 hours later, I had a deep, sun-kissed bronze that looked natural and even. No streaks. No orange tones. Just a rich glow that looks like you spent time outside instead of with a mitt in your bathroom. On top of all of this it leaves my skin feeling hydrated like I used a body lotion.
Scent:
This is one of the reasons I keep coming back to b.tan. There’s no classic self-tanner smell. It actually smells good, fresh and clean, and that stays true even as the tan develops. No “what is that smell?” moments.
Product usage & value:
What surprised me most is how little product I used compared to foam formulas. A little goes a long way. At $15 for a large bottle, the value is excellent, especially considering how dark and even the results are.
Overall, this gel is everything I want in a self-tanner: easy, clear, fast-developing, great-smelling, and deeply bronzing without drama. Five stars, zero hesitation, and officially my new go-to in the b.tan lineup.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Sun kissed without the sun damage!
Color: Ultra Dark, Size: 16 Fl Oz (Pack of 1), Color: Ultra Dark, Size: 16 Fl Oz (Pack of 1)
I’m officially obsessed with this self tanner. The glow is unreal! Super natural, bronzy, and not even a hint of orange. It gives that “just got back from vacation” look without the sun damage. It actually smells GOOD while applying, which is rare for self tanners. Typical self tanner smell once it sets.
It goes on clear, which I love because there’s zero transfer onto clothes or sheets. The only downside is that since there’s no guide color, it can be a little tricky to see where you’ve already applied it, so take your time and blend well.
But honestly... The end result is flawless, even, glowy skin. 100% a staple for me now!
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Reviewed in the United States on April 17, 2026
★★★★★ 4
Good lasting color
Color: Ultra Dark, Size: 16 Fl Oz (Pack of 1)
I have been a big fan of this brand for quite a while. I do like this specific one. The smell is not over baring however I always mix any self tanner with lotion or oil to help it go on more evenly as well as masks and possible unappealing smell. It does not rub off on clothes unless your sweating then it may but I refrain from wearing white the first day I apply but after that it’s no problem. Color is good for me. I’m fair skinned so it doesn’t so it works well for me. But the downside to that is it can be more noticeable when it starts to fade because it doesn’t fade evenly. It fades as your skin cells slough off so a good exfoliating shower helps with that. Then reapply! And the color last longer then most other brands I’ve tried
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great gel self tanner !!
Color: Ultra Dark, Size: 16 Fl Oz (Pack of 1)
This stuff is insane!!!! It literally looks and goes on clear but!!! After an hour after it being on ur skin ur are instantly tan!!!
No bad strong smell and the tan last forever and it don’t look fake or streaky at all. This stuff gives you a bronze glow and natural tan not orangey at all, it’s amazing.
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Reviewed in the United States on June 2, 2026
★★★★★ 3
50/50 - Honest and Fair review
Color: Dark, Size: 16 Fl Oz (Pack of 1), Color: Dark, Size: 16 Fl Oz (Pack of 1)
So… I bought the “glow your own way” in “darkest”. As soon as it came, immediately I read the back for timing instructions… there’s absolutely no mention of time to keep on. To be honest, that turned me off immediately especially for someone that may be new to self tanning, they would have had no idea. I had a little bit of an idea so I went with eight hours, wash off with warm water and apply moisturizer. Says “rinse free” but you have to rinse! The DHA in the tan gel that makes your color darken will only continue to develop over the next 24-30hrs AFTER YOU RINSE OFF! If you do not rinse for an extended period of time thinking the color will make you darker and darker until you look like JLO, the DHA can actually start to diminish, and your skin will begin to dry out being the tanner is now over process. I would not go over 12hrs AT THE MOST before finishing off. That being said, this also didn’t not say if I could rinse with warm water, warm water and soap, a full blown shower, and for someone new to this - they would have no idea. Not cool!
Smell - the first pump into my hands was a mix of bad coconuts, tanner, and chemically nauseating but once it was on and dried it was much better. The “fake” tan smell wasn’t as strong as others I’ve used which I very much appreciated. I did my over night so I wasn’t too worried about the smell, if you do tan during the day, your self tanner odor will be noticed.
Picture #2 - I did not apply to my hands. My hands are very dry from cleaning, doing dishes, being a mom and wife. The only thing they need is moisturizer so I opted to not apply on my old man hands. I’m coming up on hour eight and you can see the subtle difference between my wrist and my hand color. Hoping the DHA will develop more over the next day and the color will darken (I will let you know if I remember). I did NOT see a huge difference to my light olive complexion and that was disappointing. This gel in “darkest” should have been a great match for my skin tone.
Overall the smell was low after applying, the get dried very quickly which was a HUGE bonus to me! At the end of the night, speedy is the best thing for me! The subtle color this gave me was not worth it, I am hoping it darkens up over the next 24hrs. Maybe I got a faulty solution in mine.
If you’re a beginner, here’s your guide to timing and rinsing and I wouldn’t say not to try. The clear solution is beneficial and the quick drying was awesome. But if you’re looking for a deep, dark color, you’re not going get it from this which is a bummer.
Hope this helped!
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Reviewed in the United States on February 24, 2025
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