Minus Serum by Private Doctor
Private Doctor

Minus Serum

Prouct Variation Sku sephora-P437388

Top Reviews

Skin Type

it makes my skin super dry, no change to my wrinkles after a week of use

- Sephora User



skin looked refreshed, supple and well hydrated

- Sephora User

its amazing, it does everything it says it does plus its moisturizing

- Sephora User



immediately and leaves your skin looking radiant and marvellous

- Sephora User

i love that it gave me a firmer appearance in a short time and leaves my skin smooth an radiant every time i use it

- Sephora User



the serum makes my skin look smoother and so soft

- Sephora User

love the smell and the texture, it makes my skin feel so soft and smooth after applying it

- Sephora User



i couldn't believe the results i saw from the sample it helped my fine lines and wrinkles and it helped define and firm my appearance

- Sephora User

i love that it helps with my fine lines and firming my skin

- Sephora User



it also leaves my skin feeling amazing with no irritation

- Sephora User

does the firming that it claims in the ads and does not irritate my sensitive skin

- Sephora User



very light weight with no strong fragrance, it easily get absorbed in to my skin and promptly make my face radiant

- Sephora User

the lightweight and silky serum left my skin feeling more defined and radiant

- Sephora User


good for acne

i have acne prone skin and this serum hasn’t broke me out

- Sephora User

it has not broke my skin out, let me add i have extreme sensitivity skin, break out very easy and so far i have not in 3 wks very shook

- Sephora User
4.8(80 reviews)
Sort by
Filter by
Sephora userOctober 30, 2018


Makes my skin very dry. I was really excited to try it but really disappointed. It makes my skin super dry, no change to my wrinkles after a week of use.

Sephora userNovember 6, 2018

A must try if you have dark acne scars/spots

I really LOVE serum. It gives a tingling sensation whenever you put it on. If this happens, do not be scared. This is suppose to happen :)This serum has also helped lighten up my dark spots and brighten my complexion. They don't mention this in the product description but this is the only new thing I have added to my skincare regimen so I know it has to be the reason why my skin looks brighter and my dark spots have faded. I have tried EVERYTHING and nothing has worked. I tried pure vitamin C oil for my dark spots and it actually made me break out even more while darkening my spots. I did not expect the Minus Serum to have such magical powers!I am overwhelmed with joy to have discovered this wonderful product. There is no scent and it does remind me a little of hair gel. But it is easy to apply and use. You should see results within a week. I have been using it for 3 weeks and my face looks completely different. I feel so much more confident without makeup on. I can't imagine how my face will look like with time. Thank you Private Doctor! So blessed and happy to have this product as part of my skincare regimen. « less

Sephora userOctober 30, 2018

Does what it says.

I received this incredible free sample from Private Doctor a few days ago. I had been anxiously awaiting for it arrive, and now I know why I was so excited. This serum works! I actually waited for a few days before I left my review, as I wanted to give a proper review. I am in my thirties, and recently began noticing sagging under my chin and a loss of elasticity under my eyes. I have been using this serum now for about 5 days with no adverse effects and only positive results. The loss of elasticity in my skin has improved. In actuality, it has brightened my skin as well and made my face look more like I'm in my older twenties. It's glowing! I'm firm. I can tug the skin under my chin now and it snaps back. I highly recommend this serum. I just started using serums this past year and this is now my new favorite. If you have sensitive skin this is great! No clogged pores or redness. Just plump, firm, radiant skin. Thank you so much Private Doctor for the amazing complimentary samples. Buy this! You won't regret it. « less

Sephora userNovember 19, 2018

Cutting Edge Serum

I received a complimentary sample of the Define Minus Serum. The Minus Serum helps define, firm, and contour. It contains a cutting-edge formula with sodium deoxycholate, generally only used in in-office slimming procedures. The other key ingredient is micro tingling spicules, which works just like micro needling. Allowing greater absorption to produce new skin cells to replace aged or damaged skin. The lightweight and silky serum left my skin feeling more defined and radiant. This is the future of anti-aging, excited to see the benefits with time.

Sephora userDecember 30, 2018

How have I lived without this?

I've been experimenting with skin care for the last year or so. I'm no expert and my skin is just kinda there. It breaks out, gets oily, gets dry, and generally does it's thing. I've been mainly focused on removing acne because I have little hormonal breakouts pretty regularly. This is now a staple in my routine and I rarely find a skincare product I'm loyal to.I saw this and read reviews and put it in my cart. Took me a month to pull the trigger and pay for this because it's so expensive. With reality setting in, I remembered the store gives samples and I ran in to try it. Buyers remorse big time. Three days passed and it was like... ok. I got my full bottle with a sample of Philosophie's Purity face lotion. I used the combination on my face after a toner and HOLY GRAIL, I FOUND THE WINNING COMBINATION. Random people were commenting on my skin (which had always been dull and generally Meh). Saying things like "wow you're so gorgeous even without makeup (restaurant server).I'm a little oily in my T-zone and this doesn't exactly help so a little powder can do wonders. overall my skin is more radiant and pretty than I thought it could be! « less


Overall safe Ingredients

product page ingredient icon
Glyceryl polyacrylatehazard
Alcohol Denatirritanthazard
PEG-60 Hydrogenated Castor Oilhazard
Butylene Glycolacne

Top video reviews

Skin Tone
Skin Type

Nightime Skincare Routine with Dr. Brandt's Do Not Age Collection | Sephora


December 5, 2016 10.2K views 209 likes

Minus Serum by Private Doctor #2

Nightime Skincare Routine with Dr. Brandt's Do Not Age Collection | Sephora

Sephora 10.2K views

Minus Serum by Private Doctor #3

TARTE Holiday 2018 Collection Review, Swatches, & Tutorial

Julia Salvia 3.1K views

Minus Serum by Private Doctor #4


BabsBeauty 18.3K views

Minus Serum by Private Doctor #5

I spent 7K+ on Beauty Products!

luvableviet 4.7K views

Community Pulse

Profile picture of Antonia Taneva
Antonia Taneva
Oily Skin

When did you guys start using creams and serums for wrinkles? I’m 22 and wondering if it’s too early to start

Profile picture of Leah Fry
Leah Fry
Dry Skin

I use an anti aging serum (I’m 15) because they have brightening benefits and I’ve found they help combat sun damage! It’s a personal preference though, but I wouldn’t say it’s ever too early