These are two versions of the same peel from the same company, and the only disclosed difference is that Precision Plus contains two extra pigment-directed ingredients. Both are built on the same base: trichloroacetic acid, phenol, retinoic acid, salicylic acid and vitamin C. Precision Plus adds hydroquinone and kojic acid on top of that base. That is the whole of the published difference between them.
Advanced is marketed for lines and aging; Precision Plus is marketed for pigment. That is a difference of emphasis, not of strength. The manufacturer positions Advanced for aging skin from about age 40, wrinkles, fine lines and loss of elasticity, and Precision Plus for UV-induced pigmentation, sun damage, melasma and post-inflammatory hyperpigmentation (dark patches left behind after the skin is irritated). Nothing published says one is deeper or more powerful than the other.
No trial has compared these two variants, and no concentrations are published for either. The entire peer-reviewed literature on the VI Peel is one paper: an uncontrolled, open-label study of 30 people who received a peel together with botulinum toxin on the same day, which cannot separate the peel's effect from the toxin's and did not compare variants. The manufacturer does not publish percentages for any of its formulas, which is legal - professional-use-only products are exempt from the consumer ingredient-declaration rules - but it means neither variant can be independently assigned a depth or a strength.
Neither is FDA approved, because no chemical peel product is. In a drug alert dated 30 July 2024, the FDA stated: "The agency has not approved any chemical peel products, and consumers should only consider using chemical peel products under the supervision of a dermatologist or licensed and trained practitioner." That applies to the whole category, branded and unbranded alike.
That is the manufacturer's full stated ingredient list for this variant.
The two additions are the only disclosed difference between the products.
This is the manufacturer's positioning for the variant, not a tested indication.
Again the manufacturer's positioning. The added ingredients are at least consistent with that target, which is not true of the Advanced positioning.
Its claimed advantage over the base formula is not disclosed. The stated ingredient list is identical to the original VI Peel.
Hydroquinone is the most established of these in dermatology; in published peel protocols in darker skin it is commonly used as a priming cream for two to four weeks beforehand. Kojic acid is also used in pigment products.
The one published study did not identify which variant was used, was uncontrolled, and gave botulinum toxin on the same day.
The same single study is the entire literature. There is no comparison of Precision Plus against Advanced, against the original, or against a standard peel.
Manufacturer instruction: no makeup or topical products for the first four hours, then post-care kit products only for the shedding week, SPF 50, no exercise for 72 to 96 hours, no swimming for 7 to 10 days, no direct sun for seven days.
Nothing published suggests the added ingredients change the shedding timeline or the recovery instructions.
If pigment is your main problem, Precision Plus is the more logical of the two. If it is not, the choice barely matters.
Precision Plus is the only one of the pair whose formula differs from the base in a way that matches its marketing. Advanced carries the same five disclosed ingredients as the original VI Peel and is separated from it only by the age and concern it is sold for. That is worth knowing before a consultation, because if a clinic tells you Advanced is the stronger peel, that claim is not supported by anything the manufacturer has published. It may be true. There is simply no public information that would let you check it.
None of this makes either product bad. A peel can work perfectly well and have no published trial behind it. But the two are close enough that the decision should probably rest on one question - are you treating pigment or not - and not on anything more elaborate.
In the published peel protocols that worked well in darker skin, the peel was rarely the whole treatment.
Almost every successful protocol in Fitzpatrick skin types IV to VI primed the skin first with a topical, usually hydroquinone with or without tretinoin, for two to four weeks before peeling. Priming is a near-universal feature of those protocols and is associated with lower risk of the pigment darkening afterwards. Published guidance is also graded by depth: superficial peels are frequently used in this population with great patient satisfaction, medium-depth peels require caution, and deep peels should be avoided altogether in dark skin.
The VI Peel manufacturer states that all its treatments are safe and effective for all skin tones. No published trial supports that for this product, and the same manufacturer's aftercare quietly extends the exercise restriction to seven days for patients "prone to hyperpigmentation." If your skin is deeper in tone, the more useful conversation is about priming and depth, not about which of these two boxes gets opened.
There is no reliable published price for either variant. No professional society, government dataset or manufacturer list price exists for any branded chemical peel. Everything in circulation is clinic menu pricing, which cannot honestly be averaged. Ask each clinic what each variant costs and what the post-care kit costs; nothing in the published information tells you which of the two should be cheaper.
If you get cold sores, say so when you book, not on the day. Antiviral medicine has to be prescribed and started before the appointment, because reactivation happens while the skin is healing. In the strongest study on this, patients with a history of oral herpes having a perioral peel or dermabrasion with no prophylaxis had a 50 percent outbreak rate; with standard antiviral prophylaxis that fell to 8.3 percent, and no further outbreaks were seen after a higher-dose regimen was introduced. Among patients with no history of cold sores at all, 6.6 percent still developed one. Active cold sores and a history of herpes are both on the manufacturer's contraindication list.
Tell your provider about any allergy to hydroquinone, aspirin or phenol. Hydroquinone allergy specifically excludes Precision Plus, and the other two apply to both variants.
Also mention isotretinoin (Accutane) in the last six months, immune suppression, autoimmune disease or liver disease, and any history of keloid scarring or poor wound healing.
If pigment is the reason you are booking, ask whether you should be priming with a topical for a few weeks first. That step has more published support behind it than the choice between these two variants does.