Retinoids: Retinol vs Retinal vs Retinoic Acid vs..?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝I’m confused about retinol, retinal, retinoin, retinoids, etc, and of course every product claims to be the best, what’s the actual science on it?❞
Before we get into these skincare products, let’s first note that for most people, what’s best for the skin is good sleep and hydration, a plants-centric whole foods diet, and good stress management:
See for example: Of Brains And Breakouts: The Brain Skin Doctor
However, the world of potions and lotions can be an alluring one, and there is some merit there too. So, in a nutshell:
- Retinoids are the overall class of chemicals, and not a specific type
- Retinoic acid is the strongest form of this chemical and is prescription-controlled in most places
- “Retinoin” is probably tretinoin (all-trans retinoic acid) with the “t” having falling off; we can only find it being used as a product name, not an actual substance
- Retinal, when it’s not an adjective referring to the retina (the part of the eye that receives refocussed light) and is instead a noun, is a less potent retinoid than the prescription-only kinds, but still stronger than retinol
- Retinol is a much less potent form, and is the most widely found in skincare products
- Retinoic acid is the strongest form of this chemical and is prescription-controlled in most places
All of them work the same way; it is only how serious they are about it that differs.
The mechanism of action is that they speed up the turnover (shedding cycle) of skin, so that cells are replaced sooner. As with any non-cancerous human tissue, this means that the tissue itself (in this case, your skin) will be biologically younger than if it had been replaced later.
The downside, of course, of this is that—while trying to make your skin healthier and more beautiful—the first thing that will happen is skin shedding. Depending on the retinoid type, dose, and the health of your skin to start with, this may mean anything from needing to exfoliate in the morning, to having to go to hospital with what looks like the world’s worst sunburn. For this reason, it is recommended to start with weaker products and lower doses, and work up carefully.
A note on doses: the recommended doses for these products are always truly tiny, like “use a pea-sized amount of this 0.05% serum on your face”. Take them seriously until you’re absolutely sure from experience that your skin can handle more.
Also, a tip: wear gloves when you apply any of the above products. This is because your fingers are also covered in skin, and if you don’t use gloves, then half the product that you intended for your face will be absorbed into your fingers instead.
You can learn more about the science of retinoids here, in our article about tretinoin, the usually prescription-only form of retinoic acid:
Tretinoin: Undo The Sun’s Damage To Your Skin
Want to try some?
We don’t sell it, but here for your convenience is an example product of retinal (stronger than retinol) on Amazon 😎
Take care!
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Pinch of Nom – by Kate Allinson & Kay Allinson
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“Home-style recipes”, because guess where most readers live!
And: slimming, because trimming the waistline a little is a goal for many after holiday indulgences.
The key idea here is healthy recipes that “don’t taste like diet food”—often by just switching out a couple of key ingredients, to give a significantly improved nutritional profile while remaining just as tasty, especially when flavors are enhanced with clever spicing and seasoning.
The food is simple to prepare, while being “special” enough that it could be used very credibly for entertaining too. For that matter, a strength of the book is its potential for use as a creative springboard, if you’re so inclined—there are lots of good ideas in here.
The recipes themselves are all you’d expect them to be, and presented clearly in an easy-to-follow manner.
Bottom line: if you’ve ever wanted to cook healthily but you need dinner on the table in the very near future and are stuck for ideas, this book is exactly what you need.
Click here to check out Pinch of Nom, and liven up your healthy cooking!
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Greek Yogurt vs Cottage Cheese – Which is Healthier?
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Our Verdict
When comparing Greek yogurt to cottage cheese, we picked the yogurt.
Why?
These are both dairy products popularly considered healthy, mostly for their high-protein, low-carb, low-fat profile. We’re going to assume that both were made without added sugars. Thus, their macro profiles are close to identical, and nothing between them there.
In the category of vitamins, both are a good source of some B vitamins, and neither are good source of much else. The B-vitamins they have most of, B2 and B12, Greek yogurt has more.
We’ll call this a small win for Greek yogurt.
As they are dairy products, you might have expected them to contain vitamin D—however (unless they have been artificially fortified, as is usually done with plant-based equivalents) they contain none or trace amounts only.
When it comes to minerals, both are reasonable sources of calcium, selenium, and phosphorus. Of these, they’re equal on the selenium, while cottage cheese has more phosphorus and Greek yogurt has more calcium.
Since it’s also a mineral (even if it’s usually one we’re more likely to be trying to get less of), it’s also worth noting here that cottage cheese is quite high in sodium, while Greek yogurt is not.
Another win for Greek yogurt.
Beyond those things, we’d be remiss not to mention that Greek yogurt contains plenty of probiotic bacteria, while cottage cheese does not.
Want to learn more?
You might like to read:
Take care!
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Triphala Against Cognitive Decline, Obesity, & More
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Triphala is not just one thing, it is a combination of three plants being used together as one medicine:
- Alma (Emblica officinalis)
- Bibhitaki (Terminalia bellirica)
- Haritaki (Terminalia chebula)
…generally prepared in a 1:1:1 ratio.
This is a traditional preparation from ayurveda, and has enjoyed thousands of years of use in India. In and of itself, ayurveda is classified as a pseudoscience (literally: it doesn’t adhere to scientific method; instead, it merely makes suppositions that seem reasonable and acts on them), but that doesn’t mean it doesn’t still have a lot to offer—because, simply put, a lot of ayurvedic medicines work (and a lot don’t).
So, ayurveda’s unintended job has often been finding things for modern science to test.
For more on ayurveda: Ayurveda’s Contributions To Science (Without Being Itself Rooted in Scientific Method)
So, under the scrutiny of modern science, how does triphala stand up?
Against cognitive decline
It has most recently come to attention because one of its ingredients, the T. chebula, has been highlighted as effective against mild cognitive impairment (MCI) by several mechanisms of action, via its…
❝171 chemical constituents and 11 active constituents targeting MCI, such as flavonoids, which can alleviate MCI, primarily through its antioxidative, anti-inflammatory, and neuroprotective properties. T. Chebula shows potential as a natural medicine for the treatment and prevention of MCI.❞
Read in full: The potential of Terminalia chebula in alleviating mild cognitive impairment: a review
The review was quite groundbreaking, to the extent that it got a pop-science article written about it:
We’d like to talk about those 11 active constituents in particular, but we don’t have room for all of them, so we’ll mention that one of them is quercetin, which we’ve written about before:
Fight Inflammation & Protect Your Brain, With Quercetin
For gut health
It’s also been found to improve gut health by increasing transit time, that is to say, how slowly things move through your gut. Counterintuitively, this reduces constipation (without being a laxative), by giving your gut more time to absorb everything it needs to, and more time for your gut bacteria to break down the things we can’t otherwise digest:
For weight management
Triphala can also aid with weight reduction, particularly in the belly area, by modulating our insulin responses to improve insulin sensitivity:
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon 😎
Enjoy!
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Spark – by Dr. John Ratey
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We all know that exercise is good for mental health as well as physical. So, what’s so revolutionary about this “revolutionary new science of exercise and the brain”?
A lot of it has to do with the specific neuroscience of how exercise has not only a mood-boosting effect (endorphins) and neuroprotective effect (helping to guard against cognitive decline), but also promotes neuroplasticity… e.g., the creation and strengthening of neural pathways, as well as boosting the structure of the brain in some parts such as the cerebellum.
The book also covers not just “exercise has these benefits”, but also the “how this works” of all kinds of brain benefits, including:
- against Alzheimer’s
- mitigating ADHD
- managing menopause
- dealing with addiction
…and more. And once we understand how something works, we’re far more likely to be motivated to actually do the kinds of exercises that give the specific benefits we want/need. Which is very much the important part!
In short: this book will tell you what you need to know to get you doing the exercises you need to enjoy those benefits—very much worth it!
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50 Ways To Rewire Your Anxious Brain – by Dr. Catherine Pittman & Dr. Maha Zayed-Hoffman
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The book is divided into sections:
- Calming the amygdala
- Rewiring the amygdala
- Calming the cortex
- Resisting cortex traps
…each with a dozen or so ways to do exactly what it says in the title: rewire your anxious brain.
The authors take the stance that since our brain is changing all the time, we might as well choose the direction we prefer. They then set out to provide the tools for the lay reader to do that, and (in that fourth section we mentioned) how to avoid accidentally doing the opposite, no matter how tempting doing the opposite may be.
For a book written by two PhD scientists where a large portion of it is about neuroscience, the style is very light pop science (just a few in-line citations every few pages, where they couldn’t resist the urge), and the focus is on being useful to the reader throughout. This all makes for reassuringly science-based but accessibly readable book.
The fact that the main material comes in the form of 50 very short chapters also makes it a lot more readable for those for whom sitting down to read a lot at a time can be off-putting.
Bottom line: if you experience anxiety and would like to experience it less, this book will guide you through how to get there.
Click here to check out 50 Ways To Rewire Your Anxious Brain, and rewire your anxious brain!
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The Best Mobility Exercises For Each Joint
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Stiff joints and tight muscles limit movement, performance, and daily activities. They also increase the risk of injury, and increase recovery time if the injury happens. So, it’s pretty important to take care of that!
Here’s how
Key to joint health involves understanding mobility, flexibility, and stability:
- Mobility: active joint movement through a range of motion.
- Flexibility: muscle lengthening passively through a range of motion.
- Stability: body’s ability to return to position after disturbance.
Different body parts have different needs when it comes to prioritizing mobility, flexibility, and stability exercises. So, with that in mind, here’s what to do for your…
- Wrists: flexibility and stability (e.g., wrist circles, loaded flexions/extensions).
- Elbows: Stability is key; exercises like wrist and shoulder movements benefit elbows indirectly.
- Shoulders: mobility and stability; exercises include prone arm circles, passive hangs, active prone raises, easy bridges, and stick-supported movements.
- Spine: mobility and stability; recommended exercises include cat-cow and quadruped reach.
- Hips: mobility and flexibility through deep squat hip rotations; beginners can use hands for support.
- Knees: stability; exercises include elevated pistols, Bulgarian split squats, lunges, and single-leg balancing.
- Ankles: flexibility and stability; exercises include lunges, prying goblet squats, and deep squats with support if necessary.
For more on all of these, plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Building & Maintaining Mobility
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