The latest skin cream to wow thousands of women is not marketed as a face cream - it's Baby Bottom Butter, a £2.49 nappy cream, from Waitrose.
After being raved about on parenting website mumsnet.com it is becoming a must-have for yummy mummies.
So, is it worth spending a fortune on fancy moisturisers, or can a cheap pot do the job just as well?
PETER KNIGHT asked 15 women to test different skin creams, costing from £2 to £245, over a three-week period, to see which fared best.
Baby Bottom Butter, Waitrose, £2.49, 125ml
Natalie Whitlock, 27, a PR account director from London. Lives with her partner.
NATALIE SAYS: Although this contains olive oil it is not too greasy and is easily absorbed.
I used it two or three times a day and within a week my skin felt soft and looked healthy. Great value. 10/10
Siana Skinkind Anti-wrinkle Day Cream, Aldi, £1.89, 50ml
Esther Tysall, 31, a student nurse from Birmingham, married with two children.
ESTHER SAYS: Looks expensive; well packaged in a nice box.
I used it morning and night and noticed my skin felt very smooth, with no dryness or greasiness, and lines and pores are less noticeable.
Great as a make-up base. Very impressed. 10/10
Garnier UltraLift Antiwrinkle Day Cream, £8.49, 50ml
Hannah Saxe, 27, a solicitor, from Manchester.
HANNAH SAYS: A heavy and thick cream, but surprisingly easily absorbed and non-greasy.
My skin feels firmer and I'm really impressed at how good it is for the price.
I've used creams with sun protection before and found they made my skin oily later in the day, but I've not had that problem with this cream.
I'll probably keep using the cream for the day time, but when I start to get serious wrinkles, I'd probably try something else. 7/10
Dr Harnik Anti-Ageing Intense Duo Kit, £9.99, 100g (pen and cream)
Lyn Westerman, 58, an actress and bookkeeper, from Eastcote, Middlesex. Married with a daughter.
LYN SAYS: I've always used Pears soap, before applying a moisturiser - usually something costing around £5 to £10 from Olay or Boots No.7.
This Dr Harnik cream came in a large box containing a tub of the cream and an opaque "pen" - reported to be an "anti-ageing concentrate" which you're meant to dab on your lines to make them less visible.
The cream was greasy and thick but not unpleasant and left my skin feeling soft.
I did get a couple of spots in the first week but nothing since.
It's hard to say for certain whether the cream has made any improvement, but I think it is a little softer.
The "pen" didn't seem to do much either.
The cream is not bad, especially for the reasonable price, but for me it's not really different to any other heavy moisturiser. 5/10
L'Oreal Dermo-Expertise RevitaLift Anti-wrinkle Day Cream, £11.99, 50ml
Sara Turner, 35, a mortgage administrator, from Newcastle-under-Lyme. Married with two children.
SARA SAYS: I was impressed how quickly the L'Oreal cream was absorbed into my skin, I could apply my make-up immediately - unlike my usual cream from Garnier, which needs five minutes to sink in.
The cream smelled pleasant.
The first few days I used L'Oreal it appeared fine. I concentrated on the eyes, neck and forehead: the areas which seem to age the quickest.
However, after a week my face felt dry and I could feel blemishes - especially on my cheeks.
This isn't the moisturiser for me and my skin looked the same as before.
If I'm honest, I'm glad to be back to Garnier. My skin felt smoother and more moisturised within a few days. 4/10
Olay's Total Effects 7x, £14.99, 50ml
Ilse Hunt, 47, a married shop manager from Grimsby.
ILSE SAYS: I have pretty normal skin, perhaps a slightly oily T-zone but nothing overly sensitive, but this Olay moisturiser left my face feeling oddly dry.
Normally I'd use a Guinot moisturiser which costs around £31, and I have a facial every six to eight weeks.
I also use Guinot's hydrating face-pack fortnightly. I'm happy with these products as they've definitely reduced my wrinkles.
The Olay cream left my skin tingly and dry, and my cheeks rosy for the first few days.
Normally, I'd stop using a cream at that point but I continued to see if the side effects were temporary.
I also noticed spots under my nose and chin which, at 47, I thought I was past.
This wasn't for me. 4/10
Nivea DNAge Cell Renewal Day Cream, £15.45, 50ml
Jean Churchill, 58, from Marlow, Bucks. Single with two children.
JEAN SAYS: I don't smoke and rarely drink alcohol so my skin is quite healthy with only a few lines.
I normally use Boots Time Delay moisturiser and a foundation with an SPF, but in the spring and summer, I go for a higher factor sunscreen.
The Nivea cream had a pleasant scent and the light texture was easily absorbed into my skin.
But I haven't noticed any real improvements. My lines are still there, but my skin is smoother and softer, so I think I will continue to use it. 7/10
Boots' No.7 Protect and Perfect, £16.75, 50ml
Anoushka Pletts, 31, yoga teacher from South London
ANOUSHKA SAYS: I used this serum all over my face, paying special attention to my eyes, where most of my lines seem to be clustered.
It didn't feel as luxurious as my normal Dr Hauschka moisturiser - partly because the Boot's cream is odourless and I find smell is so evocative.
But, I have noticed little improvements around my nose - my pores are tighter and my skin feels smoother.
There was a lot of hype when the product was tested on TV, but I can't say that I've shared the revolution.
The cream was too light and needs a moisturiser on top of it. I think I'll just go back to my old cream. 6/10
RoC Retin-Ox Intensive Antiwrinkle Moisturiser, £26.60, 30ml
Housewife Susan Pearce, 53, from Poole, Dorset. Married with two children.
SUSAN SAYS: Slightly greasy at first but after a while it sunk into my skin. After two weeks, my skin felt smoother, looked fresher, brighter and more youthful. The general overall look has improved.
There's still lots of cream left in the RoC tube, incidentally; it certainly goes a long way and is good value for money. 8/10
Elizabeth Arden's Cerimide Plump Perfect, £45, 50ml
Andrea d'Essen, 38, works at the English Language Centre in Bristol and has a four-year-old child.
ANDREA SAYS: I moved to Britain three months ago from Brazil and my skin is certainly drier because of the colder climate.
I normally use a cream from Biotherm, but during the test I've switched to use the Elizabeth Arden cream mornings and night.
Three weeks on, I'm not sure that my lines are looking any better, but my skin feels more moisturised.
Friends have also said my skin is looking better. However, I still prefer the cream I normally use.
I think I shall go back to it when I have finished this pot. 6/10
Decleor Sublime Regenerating Cream, £82, 50ml
Anna Barras, 29, single, is an occupational psychologist and lives in West London.
ANNA SAYS: This cream certainly looked luxurious but came in a glass tub which slightly put me off as it's not practical for travelling.
It was quite rich in texture but not overly thick, however I was slightly disappointed the cream didn't have an SPF - sun damage is, after all, one of the major contributors to skin ageing.
No one commented on improvements in my skin after using the cream. It's by no means bad, however the price puts me off. 5/10
Dr Sebagh Crème Extreme Maintenance, £120, 50ml
Natasha Rees-Bloor, 35, a picture editor living in Gloucestershire.
NATASHA SAYS: Smelled pleasant - it reminded me of Atrixo hand cream - and the texture was rich and creamy but absorbed quickly.
I used the cream every morning and night, as instructed, around my face, neck and dÈcolletÈ.
My eyes seem to be where my lines are, so I gave them more attention to see if the cream would make any difference.
The Dr Sebagh cream was enjoyable to use, mainly because the price made me feel pampered. Unfortunately I haven't noticed any improvements in my skin. 5/10
Crème de la Mer, £160, 60ml
Joan Wiper, 54, a married housewife with three children, from Worplesdon, Surrey.
JOAN SAYS: I take good care of my skin and always seem to return to the same products - Clarins and more recently Dr Hauschka's Quince moisturiser, which is around £19 a tube.
But I was very excited about trying Creme de la Mer.
You have to use a spatula to ensure you use the correct amount of cream and there is also a special method of application, which takes getting used to.
After four weeks, there isn't a huge difference. My skin is less blotchy, but the changes haven't been significant enough to warrant the price.
Having said that, the cream does go a long way - each pot would last around ten weeks. 6/10
Shiseido Bio-Performance Intensive Skin Corrective Programme, £225, 1x serum 30ml, 28 x balm
Anne Heald, 52, from Bristol, a married accountant with one son.
ANNE SAYS: The Shiseido regime was strict: an application of balm, morning and night, using the serum before. I paid special attention to the lines around my eyes.
After a couple of weeks any initial reservations about the Shiseido kit were swept aside.
My skin loved the cream and within just one week my lines were softened and plumped up. My skin was left smooth to the touch.
I'd recommend this regime. However, it's obscenely expensive, so sadly, I shall have to return to my Boots cream! 10/10
Chantecaille Biodynamic Lifting Cream, £245, 50ml
Catherine Sillence, 43, administration assistant in Waterlooville, Hampshire. Married with two sons.
CATHERINE SAYS: My skin's generally normal to dry and I soon found the Chantecaille cream to be nicer than my usual £6.80 Nivea cream.
It smelt lovely and had a detailed method of application which was different - and better - than the way I usually apply my moisturiser.
But, I found no improvements in my wrinkles using the cream.
My face also had spots throughout the trial - something I don't normally suffer from. I'm going back to reliable old Nivea. 7/10
A pot of £2.49 nappy lotion or its £245 rival? We find the creme de la cream of face products | the Daily Mail