I'm 51 and test skin care for a living: Here are the weekend's best Amazon deals

When 86-year-old beauty Jane Fonda recommends a product, I pay attention: The actress recently revealed she uses this serum every night on a clean face: "It has a lot of antioxidants and good things to hydrate the skin."

The rich formula is paraben- and mineral oil-free, dermatologist-tested and suitable for all skin types. Plus, right now, it's over 30% off. 

While it's not exactly meant as a face cream, this ultra-rich moisturizer is used for that purpose by most every seasoned beauty expert I know. It's extremely hydrating, packed with nourishing plant-derived ingredients and is especially good as a nighttime treatment for faces, hands, feet, necks and even the décolleté.

Puffiness, bags and dark circles are no match for these No. 1 bestselling, vitamin-infused under-eye masks. All you do is place one under each eye, leave them on for 20 minutes, remove and admire your firmer, brighter-looking skin! No one needs to know you were up scrolling through Instagram instead of getting your eight hours of sleep. This is one of the best prices we've ever seen for this pack — just 50 cents per pair!

"These are by far the best eye patches I've used," raved a bright-eyed reviewer. "I'm 64 years old and, due to multiple major life stressors over the last three years, have gone from looking 20 years younger than my age to looking every minute of my years. I've tried everything and have spent a small fortune trying to look less haggard and puffy. These patches are amazing. The box says you'll see a difference in a few days, and I really did. No wrinkles under my eyes, and it lasts through the workday rather than the 10 minutes I've seen with some other patches. Put them in the fridge; they feel extra good!"

This beloved snail mucin from CosRx is excellent for evening skin tone and making your face look softer and brighter overall. It's also won multiple awards, has over 54,000 five-star reviews on Amazon and has impressed most every beauty editor I know.

After using it the first time (here's my full review), my face was noticeably dewier. Other reviewers have boasted about its ability to soothe, hydrate, repair and improve dull skin — all of which helps wrinkles look less deep and crepey. 

There are loads of pricey treatments and potions meant to decrease facial puffiness, promote collagen growth and improve the texture of aging skin, but the ancient art of face rolling is the easiest, least expensive and arguably the most relaxing. 

This high-quality jade roller and face massager tool set has over 26,000 five-star reviews and, right now, it's nearly 40% off.

When it comes to finding the best mascara, it takes a lot to impress me. In my years as a women's lifestyle editor, I've tried literally hundreds — at this point in my life (I'm 51), I like what I like and I rarely consider changing brands. But after testing this bestseller from Maybelline earlier this month, I've changed my tune. The formula is just beyond-the-pale amazing, the kind of thickening, lengthening, no-smudge product that would be good at any price, but for less than $10? You cannot beat it.

More than 77,000 reviewers rave about it on Amazon, all stating something along the lines of, "10/10 would recommend, I've ordered this six times now ... it's the best mascara I've ever used." Truly, it's that good. 

If I could, I'd buy every person I know a bottle of CosRx snail serum — it's truly a favorite product, one of the most effective skin-care items for complexion smoothing, skin softening and dark-spot lightening I've ever tried. But, because handing over a bottle of snail mucus on a major holiday might seem a wee but strange, these sheet masks are a quality alternative. 

They contain the award-winning snail slime, are highly hydrating and work for most any skin type. Users report they help with skin inflammation and even rosacea, and this pack of 10 is a solid entry point into the famous K-beauty line — and you can't beat the price.

Albolene's inconspicuous, no-frills moisturizing face cleanser is one of those in-the-know beauty secrets, a product you'd never think to buy for yourself until a friend said, "YOU MUST GET THIS. IT'S CHANGED MY LIFE." Well, I am that friend, telling you this lush, velvety, mild, no-fragrance cream is about to transform your entire nighttime skin-care routine and make your face a whole lot softer and happier in the process. 

The gentle, century-old cleansing product removes makeup effortlessly, without water (though you can choose to take it off by using a damp washcloth or cotton pad). It's particularly effective for older women concerned with damaging delicate under-eye areas and causing fine lines by scrubbing away mascara and eyeliner. It's also safe for all skin types. Trust me, if you buy it now (for just $10!) it will become a can't-live-without beauty staple on your bathroom shelves and — if you're a good friend — those of every woman you know.    

This is the cream you want if you're, like, "I think tightening creams are BS but I also want to believe they are true because I currently hate my neck." The Gold Bond firming cream is no frills but gets the job done (the job being tighter jowls and a less reptilian neck). The formula is lightweight and on the thin side but the product absorbs well and is gentle enough not to irritate sensitive skin. 

Note: You'll need to use it consistently for about a month to see results, and it won't, of course, magically make you appear 25, but being able to snag this ample size for less than 10 bucks makes this product worth a go.

I've been loving this extra-firming eye cream from Derma E, a truly quality brand that makes natural, vegan and cruelty-free products that won't cost you a week's pay. Made of skin-revitalizing ingredients like copper peptides and plant stem cells, it's clinically proven to improve elasticity, firmness and lighten a darker under-eye skin tone. I especially like it for my upper eyelids, where I've seen a noticeable difference in improved texture over just a few weeks.

More than 1,600 five-star reviewers also praise its lifting and tightening merits, calling it: "A miracle for your eyes—no time travel required!"

Exfoliants are essential for turning over dead skin cells and promoting skin health and collagen production no matter your age. However, they're particularly important in your 40s, 50s and beyond to keep your face from looking dull and tired. 

This Bliss serum is an excellent entry point — it's gentle yet effective and good for all but the most sensitive skin types. It smells good too. 

Retinol is one of the few ingredients that's clinically proven to help smooth wrinkles — including crow's feet — and brighten dark under-eye circles. This affordable eye cream uses a stabilized form of the retinoid that actually releases slowly over time, which means there's less chance of skin irritation, even for beginners. We've also found that this drugstore pick is effective at reducing puffiness and is gentle enough for sensitive skin.

It's among the most highly rated eye creams on the market, with 15,000 five-star Amazon reviews. It's dermatologist-recommended too. Right now is a good time to give this popular cream a try — it's nearly 50% off.

If you're looking for an all-over tightening, brightening, hydrating, complexion-smoothing night cream for the face, neck and decolleté, you can't do much better than this clinically proven version by trusted brand RoC — especially at this price. 

The popular cream is nongreasy and noncomedogenic and beloved by both dermatologists and celebrities alike (Sarah Jessica Parker is a fan). And, according to the more than 4,000 five-star reviews, ordinary folks are all over it too: "I'm in my 70s and this cream has been my go-to for years. It works on my skin!"

The sad fact is, if you're menopausal, your eyelashes are probably starting to thin and you might be seeking a solution to this thinning. This serum is it.

Tens of thousands of Amazon shoppers have experienced impressive results with this top-rated serum, which contains vitamins, peptides and amino acids to help thinning lashes appear fuller and longer. Just apply once daily, and you could see improvement in as little as four weeks, with the full effects kicking in after about three months, according to the brand.

For more, check out my colleague's full GrandeLash review.