Holly Schafer v. Conopco, Inc., d/b/a Unilever Home & Personal Care USA

CourtDistrict Court, D. New Jersey
DecidedMarch 4, 2026
Docket2:23-cv-00348
StatusUnknown

This text of Holly Schafer v. Conopco, Inc., d/b/a Unilever Home & Personal Care USA (Holly Schafer v. Conopco, Inc., d/b/a Unilever Home & Personal Care USA) is published on Counsel Stack Legal Research, covering District Court, D. New Jersey primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Holly Schafer v. Conopco, Inc., d/b/a Unilever Home & Personal Care USA, (D.N.J. 2026).

Opinion

NOT FOR PUBLICATION

UNITED STATES DISTRICT COURT DISTRICT OF NEW JERSEY

HOLLY SCHAFER, Civil Action No. 23-348 Plaintiff,

v. OPINION

CONOPCO, INC., d/b/a UNILEVER March 4, 2026 HOME & PERSONAL CARE USA,

Defendant.

SEMPER, District Judge. THIS MATTER comes before the Court on Defendant Conopco, Inc. d/b/a Unilver Home & Personal Care USA’s (“Defendant”) motion to preclude Plaintiff Holly Schafer’s (“Plaintiff”) expert from testifying at trial (ECF 41, “Daubert Mot.”) and Defendant’s motion for summary judgment (ECF 43, “SJM”). Plaintiff opposed both motions (ECF 45, “Daubert Opp.”; ECF 46, “SJM Opp.”) Defendant filed reply briefs. (ECF 49, “Daubert Reply”; ECF 47, “SJM Reply”.) The Court reviewed the submissions made in support of and in opposition to the motions and decided the motions without oral argument pursuant to Federal Rule of Civil Procedure 78 and Local Civil Rule 78.1. For the reasons stated below, Defendant’s motions are GRANTED. I. MOTION TO PRECLUDE Defendant has filed a motion to preclude the testimony of Dr. Marc Serota, an expert retained by Plaintiff, “pursuant to Rule 702 of the Federal Rules of Evidence and Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993).” (Daubert Mot. at 1.) In her Complaint, Plaintiff alleges that she experienced an allergic reaction to a preservative called DMDM hydantoin in TRESemmé shampoo manufactured by Defendant Unilever, and that such a reaction caused her to temporarily lose hair. (Id.) Plaintiff hired an expert, Dr. Marc Serota, who prepared an expert report and was deposed in the course of this and other related litigation. (See ECF 55-1, 55-4.) Defendant has included the depositions of Plaintiff and Plaintiff’s treating physician, Dr.

Donna Gavarone, as exhibits for this Court’s consideration. (See ECF 55-2, ECF 55-3.) A. Legal Standard Federal Rule of Evidence 702 provides: A witness who is qualified as an expert by knowledge, skill, experience, training, or education may testify in the form of an opinion or otherwise if the proponent demonstrates to the court that it is more likely than not that:

(a) the expert’s scientific, technical, or other specialized knowledge will help the trier of fact to understand the evidence or to determine a fact in issue;

(b) the testimony is based on sufficient facts or data;

(c) the testimony is the product of reliable principles and methods; and

(d) the expert’s opinion reflects a reliable application of the principles and methods to the facts of the case.

Fed. R. Evid. 702. In Daubert v. Merrell Dow Pharmaceuticals, Inc, the Supreme Court held that district courts must act as gatekeepers to ensure proffered expert scientific testimony meets the requirements of Rule 702. See 509 U.S. 579, 589 (1993). And in Kumho Tire Co. v. Carmichael, the Court held that “this basic gatekeeping obligation” “applies to all expert testimony,” not just “scientific” testimony. 526 U.S. 137, 147 (1999). “Rule 702 embodies three distinct substantive restrictions on the admission of expert testimony: qualifications, reliability, and fit.” Elcock v. Kmart Corp., 233 F.3d 734, 741 (3d Cir. 2000). First, the proffered witness must be a qualified expert, meaning that the witness must possess specialized expertise. Feit v. Great-West Life & Annuity Ins. Co., 460 F. Supp. 2d 632, 636 (D.N.J. 2006). Second, the testimony must be reliable. This requirement has been interpreted to mean that an “expert’s opinion must be based on the ‘methods and procedures of science’ rather than on ‘subjective belief or unsupported speculation;’ the expert must have ‘good grounds' for his or her belief.” Id. (citing In re Paoli Railroad Yard PCB Litigation, 35 F.3d 717, 742 (3d Cir.

1994), cert. denied, 513 U.S. 1190 (1995)). Thus, “[c]ourts need not admit bare conclusions or mere assumptions proffered under the guise of ‘expert opinions [,]’” id. at 637, and “nothing in either Daubert or the Federal Rules of Evidence requires a district court to admit opinion evidence that is connected to existing data only by the ipse dixit of the expert.” Gen. Elec. Co. v. Joiner, 522 U.S. 136, 146, (1997). Third, the expert’s testimony must “fit,” meaning that the testimony “‘must be relevant for the purposes of the case and must assist the trier of fact.’” Calhoun v. Yamaha Motor Corp., U.S.A., 350 F.3d 316, 321 (3d Cir. 2003) (quoting Schneider v. Fried, 320 F.3d 396, 405 (3d Cir. 2003)). An expert who renders an opinion based on factual assumptions not present in the case “cannot be said to ‘assist the trier of fact,’ as Rule 702 requires.” Elcock, 233 F.3d at 756 n. 13.

Consequently, “[t]his type of an opinion misleads the fact-finder and arguably does not comply with the ‘fit’ requirement” of Rule 702. Id. “A court ‘must examine the expert’s conclusions in order to determine whether they could reliably flow from the facts known to the expert and the methodology used.’” McGarrigle v. Mercury Marine, 838 F. Supp. 2d 282, 293 (D.N.J. 2011) (citing Oddi v. Ford Motor Co., 234 F.3d 136, 145 (3d Cir. 2000). The proponent of expert testimony must establish the admissibility of the expert’s opinion by a preponderance of the evidence. In re Paoli, 35 F.3d at 744. B. Discussion Defendant argues that Plaintiff cannot meet her burden of establishing that Dr. Serota’s opinion is reliable. (Daubert Mot. at 21.) Specifically, Defendant points to Dr. Serota’s deposition testimony where he admitted that his opinion was wrong and that he “could not even speculate as

to how TRESemmé could have possibly caused Plaintiff’s alleged hair loss” was speculative. (Id. at 23.) Defendant also argues that even if Dr. Serota had not conceded his opinion was wrong, it would still be inadmissible for Dr. Serota’s failure to conduct requisite procedures and diagnostic techniques, like the administration of a patch test or a physical examination of Plaintiff. (Id. at 23- 30.) Plaintiff counters that Dr. Serota employed reliable diagnostic techniques to opine that TRESemmé caused Plaintiff’s hair loss, namely “the close temporal relationship between the onset of Ms. Schafer’s hair loss and her use of TRESemmé.” (Daubert Opp. at 23.) Plaintiff also contends that Defendant’s arguments go to the weight, rather than admissibility, of the expert testimony here. (Id. at 26.) The opinion offered by Dr.

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Anderson v. Liberty Lobby, Inc.
477 U.S. 242 (Supreme Court, 1986)
Lujan v. National Wildlife Federation
497 U.S. 871 (Supreme Court, 1990)
Daubert v. Merrell Dow Pharmaceuticals, Inc.
509 U.S. 579 (Supreme Court, 1993)
General Electric Co. v. Joiner
522 U.S. 136 (Supreme Court, 1997)
Kumho Tire Co. v. Carmichael
526 U.S. 137 (Supreme Court, 1999)
In Re Paoli Railroad Yard PCB Litigation
35 F.3d 717 (Third Circuit, 1994)
Boyle v. County Of Allegheny Pennsylvania
139 F.3d 386 (Third Circuit, 1998)
Carmelita Elcock v. Kmart Corporation
233 F.3d 734 (Third Circuit, 2000)
Schneider v. Fried
320 F.3d 396 (Third Circuit, 2003)
Coffman v. Keene Corp.
628 A.2d 710 (Supreme Court of New Jersey, 1993)
Feit v. Great-West Life and Annuity Ins. Co.
460 F. Supp. 2d 632 (D. New Jersey, 2006)
Oddi v. Ford Motor Co.
234 F.3d 136 (Third Circuit, 2000)
Calhoun v. Yamaha Motor Corp.
350 F.3d 316 (Third Circuit, 2003)
State Farm Fire & Casualty Co. v. Holmes Products
165 F. App'x 182 (Third Circuit, 2006)
Quail v. Shop-Rite Supermarkets, Inc.
188 A.3d 348 (New Jersey Superior Court App Division, 2018)
McGarrigle v. Mercury Marine
838 F. Supp. 2d 282 (D. New Jersey, 2011)

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Holly Schafer v. Conopco, Inc., d/b/a Unilever Home & Personal Care USA, Counsel Stack Legal Research, https://law.counselstack.com/opinion/holly-schafer-v-conopco-inc-dba-unilever-home-personal-care-usa-njd-2026.